CWE-125
AllowedOut-of-bounds Read
Abstraction: Base · Status: Draft
The product reads data past the end, or before the beginning, of the intended buffer.
12575 vulnerabilities reference this CWE, most recent first.
GHSA-PXWR-CC58-GQ3M
Vulnerability from github – Published: 2025-04-17 21:30 – Updated: 2025-04-17 21:30In the Linux kernel, the following vulnerability has been resolved:
um: Fix out-of-bounds read in LDT setup
syscall_stub_data() expects the data_count parameter to be the number of longs, not bytes.
================================================================== BUG: KASAN: stack-out-of-bounds in syscall_stub_data+0x70/0xe0 Read of size 128 at addr 000000006411f6f0 by task swapper/1
CPU: 0 PID: 1 Comm: swapper Not tainted 5.18.0+ #18 Call Trace: show_stack.cold+0x166/0x2a7 __dump_stack+0x3a/0x43 dump_stack_lvl+0x1f/0x27 print_report.cold+0xdb/0xf81 kasan_report+0x119/0x1f0 kasan_check_range+0x3a3/0x440 memcpy+0x52/0x140 syscall_stub_data+0x70/0xe0 write_ldt_entry+0xac/0x190 init_new_ldt+0x515/0x960 init_new_context+0x2c4/0x4d0 mm_init.constprop.0+0x5ed/0x760 mm_alloc+0x118/0x170 0x60033f48 do_one_initcall+0x1d7/0x860 0x60003e7b kernel_init+0x6e/0x3d4 new_thread_handler+0x1e7/0x2c0
The buggy address belongs to stack of task swapper/1 and is located at offset 64 in frame: init_new_ldt+0x0/0x960
This frame has 2 objects: [32, 40) 'addr' [64, 80) 'desc' ==================================================================
{
"affected": [],
"aliases": [
"CVE-2022-49395"
],
"database_specific": {
"cwe_ids": [
"CWE-125"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-02-26T07:01:16Z",
"severity": "HIGH"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\num: Fix out-of-bounds read in LDT setup\n\nsyscall_stub_data() expects the data_count parameter to be the number of\nlongs, not bytes.\n\n ==================================================================\n BUG: KASAN: stack-out-of-bounds in syscall_stub_data+0x70/0xe0\n Read of size 128 at addr 000000006411f6f0 by task swapper/1\n\n CPU: 0 PID: 1 Comm: swapper Not tainted 5.18.0+ #18\n Call Trace:\n show_stack.cold+0x166/0x2a7\n __dump_stack+0x3a/0x43\n dump_stack_lvl+0x1f/0x27\n print_report.cold+0xdb/0xf81\n kasan_report+0x119/0x1f0\n kasan_check_range+0x3a3/0x440\n memcpy+0x52/0x140\n syscall_stub_data+0x70/0xe0\n write_ldt_entry+0xac/0x190\n init_new_ldt+0x515/0x960\n init_new_context+0x2c4/0x4d0\n mm_init.constprop.0+0x5ed/0x760\n mm_alloc+0x118/0x170\n 0x60033f48\n do_one_initcall+0x1d7/0x860\n 0x60003e7b\n kernel_init+0x6e/0x3d4\n new_thread_handler+0x1e7/0x2c0\n\n The buggy address belongs to stack of task swapper/1\n and is located at offset 64 in frame:\n init_new_ldt+0x0/0x960\n\n This frame has 2 objects:\n [32, 40) \u0027addr\u0027\n [64, 80) \u0027desc\u0027\n ==================================================================",
"id": "GHSA-pxwr-cc58-gq3m",
"modified": "2025-04-17T21:30:44Z",
"published": "2025-04-17T21:30:44Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-49395"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/10995a382271254bd276627ec74136da4a23c4a6"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/24ca648bf5f72ed8878cf09b5d4431935779681e"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/2a4a62a14be1947fa945c5c11ebf67326381a568"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/3549ab4b962cf619e8c55484a0d870a34b3f845f"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/668ca34a428d6ffc0f99a1a6a9b661a288d4183b"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/91e5ba2af2d729d5126aefd5aa3eadc69b8426e5"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/9caad70819aef3431abaf73ba5163b55b161aba0"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/cf0dabc37446c5ee538ae7b4c467ab0e53fa5463"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/ef1dc929a1e5fa1b2d842256db9fb8710d3be910"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-PXWV-VQ3C-Q2VM
Vulnerability from github – Published: 2022-05-14 03:40 – Updated: 2022-05-14 03:40Huawei AR120-S V200R005C32, V200R006C10, V200R007C00, V200R008C20, V200R008C30, AR1200 V200R005C32, V200R006C10, V200R007C00, V200R007C01, V200R007C02, V200R008C20, V200R008C30, AR1200-S V200R005C32, V200R006C10, V200R007C00, V200R008C20, V200R008C30, AR150 V200R005C32, V200R006C10, V200R007C00, V200R007C01, V200R007C02, V200R008C20, V200R008C30, AR150-S V200R005C32, V200R007C00, V200R008C20, V200R008C30, AR160 V200R005C32, V200R006C10, V200R007C00, V200R007C01, V200R007C02, V200R008C20, V200R008C30, AR200 V200R005C32, V200R006C10, V200R007C00, V200R007C01, V200R008C20, V200R008C30, AR200-S V200R005C32, V200R006C10, V200R007C00, V200R008C20, V200R008C30, AR2200 V200R006C10, V200R007C00, V200R007C01, V200R007C02, V200R008C20, V200R008C30, AR2200-S V200R005C32, V200R006C10, V200R007C00, V200R008C20, V200R008C30, AR3200 V200R005C32, V200R006C10, V200R006C11, V200R007C00, V200R007C01, V200R007C02, V200R008C00, V200R008C10, V200R008C20, V200R008C30, AR3600 V200R006C10, V200R007C00, V200R007C01, V200R008C20, AR510 V200R005C32, V200R006C10, V200R007C00, V200R008C20, V200R008C30, NetEngine16EX V200R005C32, V200R006C10, V200R007C00, V200R008C20, V200R008C30, SRG1300 V200R005C32, V200R006C10, V200R007C00, V200R007C02, V200R008C20, V200R008C30, SRG2300 V200R005C32, V200R006C10, V200R007C00, V200R007C02, V200R008C20, V200R008C30, SRG3300 V200R005C32, V200R006C10, V200R007C00, V200R008C20, V200R008C30 have an out-of-bounds read vulnerability due to insufficient input validation. An unauthenticated, remote attacker could exploit this vulnerability by sending malformed Session Initiation Protocol(SIP) packets to the target device. Successful exploit could make the device read out of bounds and thus cause a service to be unavailable.
{
"affected": [],
"aliases": [
"CVE-2017-17202"
],
"database_specific": {
"cwe_ids": [
"CWE-125"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2018-02-15T16:29:00Z",
"severity": "HIGH"
},
"details": "Huawei AR120-S V200R005C32, V200R006C10, V200R007C00, V200R008C20, V200R008C30, AR1200 V200R005C32, V200R006C10, V200R007C00, V200R007C01, V200R007C02, V200R008C20, V200R008C30, AR1200-S V200R005C32, V200R006C10, V200R007C00, V200R008C20, V200R008C30, AR150 V200R005C32, V200R006C10, V200R007C00, V200R007C01, V200R007C02, V200R008C20, V200R008C30, AR150-S V200R005C32, V200R007C00, V200R008C20, V200R008C30, AR160 V200R005C32, V200R006C10, V200R007C00, V200R007C01, V200R007C02, V200R008C20, V200R008C30, AR200 V200R005C32, V200R006C10, V200R007C00, V200R007C01, V200R008C20, V200R008C30, AR200-S V200R005C32, V200R006C10, V200R007C00, V200R008C20, V200R008C30, AR2200 V200R006C10, V200R007C00, V200R007C01, V200R007C02, V200R008C20, V200R008C30, AR2200-S V200R005C32, V200R006C10, V200R007C00, V200R008C20, V200R008C30, AR3200 V200R005C32, V200R006C10, V200R006C11, V200R007C00, V200R007C01, V200R007C02, V200R008C00, V200R008C10, V200R008C20, V200R008C30, AR3600 V200R006C10, V200R007C00, V200R007C01, V200R008C20, AR510 V200R005C32, V200R006C10, V200R007C00, V200R008C20, V200R008C30, NetEngine16EX V200R005C32, V200R006C10, V200R007C00, V200R008C20, V200R008C30, SRG1300 V200R005C32, V200R006C10, V200R007C00, V200R007C02, V200R008C20, V200R008C30, SRG2300 V200R005C32, V200R006C10, V200R007C00, V200R007C02, V200R008C20, V200R008C30, SRG3300 V200R005C32, V200R006C10, V200R007C00, V200R008C20, V200R008C30 have an out-of-bounds read vulnerability due to insufficient input validation. An unauthenticated, remote attacker could exploit this vulnerability by sending malformed Session Initiation Protocol(SIP) packets to the target device. Successful exploit could make the device read out of bounds and thus cause a service to be unavailable.",
"id": "GHSA-pxwv-vq3c-q2vm",
"modified": "2022-05-14T03:40:01Z",
"published": "2022-05-14T03:40:01Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2017-17202"
},
{
"type": "WEB",
"url": "http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20180131-01-sip-en"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-PXWX-G88V-CM98
Vulnerability from github – Published: 2023-03-29 21:30 – Updated: 2024-11-27 21:32This vulnerability allows remote attackers to disclose sensitive information on affected installations of PDF-XChange Editor. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of J2K files. Crafted data in a J2K file can trigger a read past the end of an allocated buffer. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of the current process. Was ZDI-CAN-17636.
{
"affected": [],
"aliases": [
"CVE-2022-37351"
],
"database_specific": {
"cwe_ids": [
"CWE-125"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-03-29T19:15:00Z",
"severity": "MODERATE"
},
"details": "This vulnerability allows remote attackers to disclose sensitive information on affected installations of PDF-XChange Editor. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of J2K files. Crafted data in a J2K file can trigger a read past the end of an allocated buffer. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of the current process. Was ZDI-CAN-17636.",
"id": "GHSA-pxwx-g88v-cm98",
"modified": "2024-11-27T21:32:40Z",
"published": "2023-03-29T21:30:20Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-37351"
},
{
"type": "WEB",
"url": "https://www.tracker-software.com/product/pdf-xchange-editor/history"
},
{
"type": "WEB",
"url": "https://www.zerodayinitiative.com/advisories/ZDI-22-1079"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-PXXV-JWGH-4C96
Vulnerability from github – Published: 2022-05-13 01:42 – Updated: 2022-05-13 01:42In Android for MSM, Firefox OS for MSM, QRD Android, with all Android releases from CAF using the Linux kernel, while processing cfg80211 vendor sub command QCA_NL80211_VENDOR_SUBCMD_ROAM, a buffer over-read can occur.
{
"affected": [],
"aliases": [
"CVE-2017-11061"
],
"database_specific": {
"cwe_ids": [
"CWE-125"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2017-10-10T20:29:00Z",
"severity": "HIGH"
},
"details": "In Android for MSM, Firefox OS for MSM, QRD Android, with all Android releases from CAF using the Linux kernel, while processing cfg80211 vendor sub command QCA_NL80211_VENDOR_SUBCMD_ROAM, a buffer over-read can occur.",
"id": "GHSA-pxxv-jwgh-4c96",
"modified": "2022-05-13T01:42:06Z",
"published": "2022-05-13T01:42:06Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2017-11061"
},
{
"type": "WEB",
"url": "https://source.android.com/security/bulletin/pixel/2017-10-01"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/101160"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-PXXX-Q4Q5-PQF9
Vulnerability from github – Published: 2023-04-12 21:30 – Updated: 2023-04-12 21:30Adobe Dimension version 3.4.8 (and earlier) is affected by an out-of-bounds read vulnerability that could lead to disclosure of sensitive memory. An attacker could leverage this vulnerability to bypass mitigations such as ASLR. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
{
"affected": [],
"aliases": [
"CVE-2023-26378"
],
"database_specific": {
"cwe_ids": [
"CWE-125"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-04-12T20:15:00Z",
"severity": "MODERATE"
},
"details": "Adobe Dimension version 3.4.8 (and earlier) is affected by an out-of-bounds read vulnerability that could lead to disclosure of sensitive memory. An attacker could leverage this vulnerability to bypass mitigations such as ASLR. Exploitation of this issue requires user interaction in that a victim must open a malicious file.",
"id": "GHSA-pxxx-q4q5-pqf9",
"modified": "2023-04-12T21:30:19Z",
"published": "2023-04-12T21:30:19Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-26378"
},
{
"type": "WEB",
"url": "https://helpx.adobe.com/security/products/dimension/apsb23-27.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-Q22C-W32J-8CP8
Vulnerability from github – Published: 2023-08-23 03:30 – Updated: 2024-03-21 03:35** UNSUPPPORTED WHEN ASSIGNED ** ** UNSUPPORTED WHEN ASSIGNED ** Out-of-bounds Read vulnerability in Hitachi EH-VIEW (Designer) allows local attackers to potentially disclose information on affected EH-VIEW installations. User interaction is required to exploit the vulnerabilities in that the user must open a malicious file. NOTE: This vulnerability only affects products that are no longer supported by the maintainer.
{
"affected": [],
"aliases": [
"CVE-2023-39986"
],
"database_specific": {
"cwe_ids": [
"CWE-125"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-08-23T02:15:08Z",
"severity": "MODERATE"
},
"details": "** UNSUPPPORTED WHEN ASSIGNED ** ** UNSUPPORTED WHEN ASSIGNED ** Out-of-bounds Read vulnerability in Hitachi EH-VIEW (Designer) allows local attackers to potentially disclose information on affected EH-VIEW installations. User interaction is required to exploit the vulnerabilities in that the user must open a malicious file. NOTE: This vulnerability only affects products that are no longer supported by the maintainer.",
"id": "GHSA-q22c-w32j-8cp8",
"modified": "2024-03-21T03:35:41Z",
"published": "2023-08-23T03:30:18Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-39986"
},
{
"type": "WEB",
"url": "https://www.hitachi.com/hirt/hitachi-sec/2023/002.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-Q22F-H8V6-28G6
Vulnerability from github – Published: 2022-05-24 16:55 – Updated: 2024-04-04 01:53In the Android kernel in SEC_TS touch driver there is a possible out of bounds read due to a missing bounds check. This could lead to local information disclosure with System execution privileges needed. User interaction is not needed for exploitation.
{
"affected": [],
"aliases": [
"CVE-2019-9452"
],
"database_specific": {
"cwe_ids": [
"CWE-125"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2019-09-06T22:15:00Z",
"severity": "MODERATE"
},
"details": "In the Android kernel in SEC_TS touch driver there is a possible out of bounds read due to a missing bounds check. This could lead to local information disclosure with System execution privileges needed. User interaction is not needed for exploitation.",
"id": "GHSA-q22f-h8v6-28g6",
"modified": "2024-04-04T01:53:47Z",
"published": "2022-05-24T16:55:38Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-9452"
},
{
"type": "WEB",
"url": "https://source.android.com/security/bulletin/pixel/2019-09-01"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-Q258-2FM4-MCJ5
Vulnerability from github – Published: 2022-05-24 17:16 – Updated: 2022-05-24 17:16In FreeBSD 12.1-STABLE before r356035, 12.1-RELEASE before 12.1-RELEASE-p4, 11.3-STABLE before r356036, and 11.3-RELEASE before 11.3-RELEASE-p8, incomplete packet data validation may result in memory access after it has been freed leading to a kernel panic or other unpredictable results.
{
"affected": [],
"aliases": [
"CVE-2019-15874"
],
"database_specific": {
"cwe_ids": [
"CWE-125",
"CWE-20"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2020-04-29T00:15:00Z",
"severity": "HIGH"
},
"details": "In FreeBSD 12.1-STABLE before r356035, 12.1-RELEASE before 12.1-RELEASE-p4, 11.3-STABLE before r356036, and 11.3-RELEASE before 11.3-RELEASE-p8, incomplete packet data validation may result in memory access after it has been freed leading to a kernel panic or other unpredictable results.",
"id": "GHSA-q258-2fm4-mcj5",
"modified": "2022-05-24T17:16:48Z",
"published": "2022-05-24T17:16:48Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-15874"
},
{
"type": "WEB",
"url": "https://security.FreeBSD.org/advisories/FreeBSD-SA-20:10.ipfw.asc"
},
{
"type": "WEB",
"url": "https://security.netapp.com/advisory/ntap-20200511-0002"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-Q258-F5X3-CCFJ
Vulnerability from github – Published: 2026-01-13 18:31 – Updated: 2026-01-13 18:31Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
{
"affected": [],
"aliases": [
"CVE-2026-20946"
],
"database_specific": {
"cwe_ids": [
"CWE-125"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-01-13T18:16:22Z",
"severity": "HIGH"
},
"details": "Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to execute code locally.",
"id": "GHSA-q258-f5x3-ccfj",
"modified": "2026-01-13T18:31:10Z",
"published": "2026-01-13T18:31:10Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-20946"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20946"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-Q263-FVXM-M5MW
Vulnerability from github – Published: 2020-12-10 19:07 – Updated: 2024-10-30 21:25Impact
Under certain cases, loading a saved model can result in accessing uninitialized memory while building the computation graph. The MakeEdge function creates an edge between one output tensor of the src node (given by output_index) and the input slot of the dst node (given by input_index). This is only possible if the types of the tensors on both sides coincide, so the function begins by obtaining the corresponding DataType values and comparing these for equality:
DataType src_out = src->output_type(output_index);
DataType dst_in = dst->input_type(input_index);
//...
However, there is no check that the indices point to inside of the arrays they index into. Thus, this can result in accessing data out of bounds of the corresponding heap allocated arrays.
In most scenarios, this can manifest as unitialized data access, but if the index points far away from the boundaries of the arrays this can be used to leak addresses from the library.
Patches
We have patched the issue in GitHub commit 0cc38aaa4064fd9e79101994ce9872c6d91f816b and will release TensorFlow 2.4.0 containing the patch. TensorFlow nightly packages after this commit will also have the issue resolved.
Since this issue also impacts TF versions before 2.4, we will patch all releases between 1.15 and 2.3 inclusive.
For more information
Please consult our security guide for more information regarding the security model and how to contact us with issues and questions.
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"aliases": [
"CVE-2020-26271"
],
"database_specific": {
"cwe_ids": [
"CWE-125",
"CWE-908"
],
"github_reviewed": true,
"github_reviewed_at": "2020-12-10T19:06:50Z",
"nvd_published_at": null,
"severity": "MODERATE"
},
"details": "### Impact\nUnder certain cases, loading a saved model can result in accessing uninitialized memory while building the computation graph. The [`MakeEdge` function](https://github.com/tensorflow/tensorflow/blob/3616708cb866365301d8e67b43b32b46d94b08a0/tensorflow/core/common_runtime/graph_constructor.cc#L1426-L1438) creates an edge between one output tensor of the `src` node (given by `output_index`) and the input slot of the `dst` node (given by `input_index`). This is only possible if the types of the tensors on both sides coincide, so the function begins by obtaining the corresponding `DataType` values and comparing these for equality:\n\n```cc\n DataType src_out = src-\u003eoutput_type(output_index);\n DataType dst_in = dst-\u003einput_type(input_index);\n //...\n```\n\nHowever, there is no check that the indices point to inside of the arrays they index into. Thus, this can result in accessing data out of bounds of the corresponding heap allocated arrays.\n\nIn most scenarios, this can manifest as unitialized data access, but if the index points far away from the boundaries of the arrays this can be used to leak addresses from the library.\n\n### Patches\nWe have patched the issue in GitHub commit [0cc38aaa4064fd9e79101994ce9872c6d91f816b](https://github.com/tensorflow/tensorflow/commit/0cc38aaa4064fd9e79101994ce9872c6d91f816b) and will release TensorFlow 2.4.0 containing the patch. TensorFlow nightly packages after this commit will also have the issue resolved.\n\nSince this issue also impacts TF versions before 2.4, we will patch all releases between 1.15 and 2.3 inclusive.\n\n### For more information\nPlease consult [our security guide](https://github.com/tensorflow/tensorflow/blob/master/SECURITY.md) for more information regarding the security model and how to contact us with issues and questions.",
"id": "GHSA-q263-fvxm-m5mw",
"modified": "2024-10-30T21:25:05Z",
"published": "2020-12-10T19:07:34Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/tensorflow/tensorflow/security/advisories/GHSA-q263-fvxm-m5mw"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-26271"
},
{
"type": "WEB",
"url": "https://github.com/tensorflow/tensorflow/commit/0cc38aaa4064fd9e79101994ce9872c6d91f816b"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/tensorflow-cpu/PYSEC-2020-302.yaml"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/tensorflow-gpu/PYSEC-2020-337.yaml"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/tensorflow/PYSEC-2020-257.yaml"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N",
"type": "CVSS_V4"
}
],
"summary": "Heap out of bounds access in MakeEdge in TensorFlow"
}
Mitigation MIT-5
Strategy: Input Validation
- Assume all input is malicious. Use an "accept known good" input validation strategy, i.e., use a list of acceptable inputs that strictly conform to specifications. Reject any input that does not strictly conform to specifications, or transform it into something that does.
- When performing input validation, consider all potentially relevant properties, including length, type of input, the full range of acceptable values, missing or extra inputs, syntax, consistency across related fields, and conformance to business rules. As an example of business rule logic, "boat" may be syntactically valid because it only contains alphanumeric characters, but it is not valid if the input is only expected to contain colors such as "red" or "blue."
- Do not rely exclusively on looking for malicious or malformed inputs. This is likely to miss at least one undesirable input, especially if the code's environment changes. This can give attackers enough room to bypass the intended validation. However, denylists can be useful for detecting potential attacks or determining which inputs are so malformed that they should be rejected outright.
- To reduce the likelihood of introducing an out-of-bounds read, ensure that you validate and ensure correct calculations for any length argument, buffer size calculation, or offset. Be especially careful of relying on a sentinel (i.e. special character such as NUL) in untrusted inputs.
Mitigation
Strategy: Language Selection
Use a language that provides appropriate memory abstractions.
CAPEC-540: Overread Buffers
An adversary attacks a target by providing input that causes an application to read beyond the boundary of a defined buffer. This typically occurs when a value influencing where to start or stop reading is set to reflect positions outside of the valid memory location of the buffer. This type of attack may result in exposure of sensitive information, a system crash, or arbitrary code execution.