All the vulnerabilites related to github - cmark-gfm
cve-2023-22484
Vulnerability from cvelistv5
Published
2023-01-23 22:42
Modified
2024-08-02 10:13
Severity ?
3.5 (Low) - CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Summary
cmark-gfm is GitHub's fork of cmark, a CommonMark parsing and rendering library and program in C. Versions prior to 0.29.0.gfm.7 are subject to a polynomial time complexity issue in cmark-gfm that may lead to unbounded resource exhaustion and subsequent denial of service. This vulnerability has been patched in 0.29.0.gfm.7.
References
https://github.com/github/cmark-gfm/security/advisories/GHSA-24f7-9frr-5h2rx_refsource_CONFIRM
Impacted products
Vendor Product Version
Show details on NVD website

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cve-2023-24824
Vulnerability from cvelistv5
Published
2023-03-31 22:01
Modified
2024-08-02 11:03
Severity ?
5.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Summary
cmark-gfm is GitHub's fork of cmark, a CommonMark parsing and rendering library and program in C. A polynomial time complexity issue in cmark-gfm may lead to unbounded resource exhaustion and subsequent denial of service. This CVE covers quadratic complexity issues when parsing text which leads with either large numbers of `>` or `-` characters. This issue has been addressed in version 0.29.0.gfm.10. Users are advised to upgrade. Users unable to upgrade should validate that their input comes from trusted sources.
References
https://github.com/github/cmark-gfm/security/advisories/GHSA-66g8-4hjf-77xhx_refsource_CONFIRM
https://github.com/github/cmark-gfm/commit/2300c1bd2c8226108885bf019655c4159cf26b59x_refsource_MISC
Impacted products
Vendor Product Version
Show details on NVD website

To clipboard 

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cve-2022-39209
Vulnerability from cvelistv5
Published
2022-09-15 00:00
Modified
2024-08-03 12:00
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
cmark-gfm is GitHub's fork of cmark, a CommonMark parsing and rendering library and program in C. In versions prior to 0.29.0.gfm.6 a polynomial time complexity issue in cmark-gfm's autolink extension may lead to unbounded resource exhaustion and subsequent denial of service. Users may verify the patch by running `python3 -c 'print("![l"* 100000 + "\n")' | ./cmark-gfm -e autolink`, which will resource exhaust on unpatched cmark-gfm but render correctly on patched cmark-gfm. This vulnerability has been patched in 0.29.0.gfm.6. Users are advised to upgrade. Users unable to upgrade should disable the use of the autolink extension.
References
https://github.com/github/cmark-gfm/security/advisories/GHSA-cgh3-p57x-9q7q
https://github.com/github/cmark-gfm/commit/9d57d8a23142b316282bdfc954cb0ecda40a8655
https://en.wikipedia.org/wiki/Time_complexity
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JMGP65NANDVKPDMXMKYO2ZV2H2HZJY4P/vendor-advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JIUCZN3PEKUCT2JQYQTYOVIJG2KSD6G7/vendor-advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UEAAAI4OULDYQ2TA3HOXH54PC3DCBFZS/vendor-advisory
Impacted products
Vendor Product Version
Show details on NVD website

To clipboard 

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cve-2020-5238
Vulnerability from cvelistv5
Published
2020-07-01 23:05
Modified
2024-08-04 08:22
Severity ?
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
The table extension in GitHub Flavored Markdown before version 0.29.0.gfm.1 takes O(n * n) time to parse certain inputs. An attacker could craft a markdown table which would take an unreasonably long time to process, causing a denial of service. This issue does not affect the upstream cmark project. The issue has been fixed in version 0.29.0.gfm.1.
References
https://github.com/github/cmark-gfm/security/advisories/GHSA-7gc6-9qr5-hc85x_refsource_CONFIRM
https://github.com/github/cmark-gfm/commit/85d895289c5ab67f988ca659493a64abb5fec7b4x_refsource_MISC
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TCDHBTUFIOYRIS5HAS6PZNBNMB7IOAX3/vendor-advisory, x_refsource_FEDORA
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZGJH2A4VAV54X6NSCNNGSEIGIIY5N2VR/vendor-advisory, x_refsource_FEDORA
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WMQFOQQCWOAMQ4I2XIVCVOXXIJ75HDCW/vendor-advisory, x_refsource_FEDORA
Impacted products
Vendor Product Version
Show details on NVD website

To clipboard 

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cve-2023-22485
Vulnerability from cvelistv5
Published
2023-01-24 00:26
Modified
2024-08-02 10:13
Severity ?
5.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Summary
cmark-gfm is GitHub's fork of cmark, a CommonMark parsing and rendering library and program in C. In versions prior 0.29.0.gfm.7, a crafted markdown document can trigger an out-of-bounds read in the `validate_protocol` function. We believe this bug is harmless in practice, because the out-of-bounds read accesses `malloc` metadata without causing any visible damage.This vulnerability has been patched in 0.29.0.gfm.7.
References
https://github.com/github/cmark-gfm/security/advisories/GHSA-c944-cv5f-hpvrx_refsource_CONFIRM
Impacted products
Vendor Product Version
Show details on NVD website

To clipboard 

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cve-2024-22051
Vulnerability from cvelistv5
Published
2024-01-04 20:27
Modified
2024-08-01 22:35
Severity ?
Summary
CommonMarker versions prior to 0.23.4 are at risk of an integer overflow vulnerability. This vulnerability can result in possibly unauthenticated remote attackers to cause heap memory corruption, potentially leading to an information leak or remote code execution, via parsing tables with marker rows that contain more than UINT16_MAX columns.
References
https://github.com/github/cmark-gfm/security/advisories/GHSA-mc3g-88wq-6f4xrelated
https://github.com/gjtorikian/commonmarker/security/advisories/GHSA-fmx4-26r3-wxpfvendor-advisory
https://github.com/gjtorikian/commonmarker/commit/ab4504fd17460627a6ab255bc3c63e8e5fc6aed3patch
https://github.com/advisories/GHSA-fmx4-26r3-wxpfthird-party-advisory
https://vulncheck.com/advisories/vc-advisory-GHSA-fmx4-26r3-wxpfthird-party-advisory
Impacted products
Vendor Product Version
Show details on NVD website

To clipboard 

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cve-2023-37463
Vulnerability from cvelistv5
Published
2023-07-13 19:22
Modified
2024-10-30 18:48
Severity ?
6.4 (Medium) - CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:H
Summary
cmark-gfm is an extended version of the C reference implementation of CommonMark, a rationalized version of Markdown syntax with a spec. Three polynomial time complexity issues in cmark-gfm may lead to unbounded resource exhaustion and subsequent denial of service. These vulnerabilities have been patched in 0.29.0.gfm.12.
References
https://github.com/github/cmark-gfm/security/advisories/GHSA-w4qg-3vf7-m9x5x_refsource_CONFIRM
https://github.com/github/cmark-gfm/releases/tag/0.29.0.gfm.12x_refsource_MISC
Impacted products
Vendor Product Version
Show details on NVD website

To clipboard 

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cve-2023-26485
Vulnerability from cvelistv5
Published
2023-03-31 22:01
Modified
2024-08-02 11:53
Severity ?
5.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Summary
cmark-gfm is GitHub's fork of cmark, a CommonMark parsing and rendering library and program in C. A polynomial time complexity issue in cmark-gfm may lead to unbounded resource exhaustion and subsequent denial of service. This CVE covers quadratic complexity issues when parsing text which leads with either large numbers of `_` characters. This issue has been addressed in version 0.29.0.gfm.10. Users are advised to upgrade. Users unable to upgrade should validate that their input comes from trusted sources. ### Impact A polynomial time complexity issue in cmark-gfm may lead to unbounded resource exhaustion and subsequent denial of service. ### Proof of concept ``` $ ~/cmark-gfm$ python3 -c 'pad = "_" * 100000; print(pad + "." + pad, end="")' | time ./build/src/cmark-gfm --to plaintext ``` Increasing the number 10000 in the above commands causes the running time to increase quadratically. ### Patches This vulnerability have been patched in 0.29.0.gfm.10. ### Note on cmark and cmark-gfm XXX: TBD [cmark-gfm](https://github.com/github/cmark-gfm) is a fork of [cmark](https://github.com/commonmark/cmark) that adds the GitHub Flavored Markdown extensions. The two codebases have diverged over time, but share a common core. These bugs affect both `cmark` and `cmark-gfm`. ### Credit We would like to thank @gravypod for reporting this vulnerability. ### References https://en.wikipedia.org/wiki/Time_complexity ### For more information If you have any questions or comments about this advisory: * Open an issue in [github/cmark-gfm](https://github.com/github/cmark-gfm)
References
https://github.com/github/cmark-gfm/security/advisories/GHSA-r8vr-c48j-fcc5x_refsource_CONFIRM
https://github.com/github/cmark-gfm/commit/07a66c9bc341f902878e37d7da8647d6ef150987x_refsource_MISC
Impacted products
Vendor Product Version
Show details on NVD website

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cve-2023-22486
Vulnerability from cvelistv5
Published
2023-01-24 02:30
Modified
2024-08-02 10:13
Severity ?
3.5 (Low) - CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Summary
cmark-gfm is GitHub's fork of cmark, a CommonMark parsing and rendering library and program in C. Versions prior to 0.29.0.gfm.7 contain a polynomial time complexity issue in handle_close_bracket that may lead to unbounded resource exhaustion and subsequent denial of service. This vulnerability has been patched in 0.29.0.gfm.7.
References
https://github.com/github/cmark-gfm/security/advisories/GHSA-r572-jvj2-3m8px_refsource_CONFIRM
Impacted products
Vendor Product Version
Show details on NVD website

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cve-2023-22483
Vulnerability from cvelistv5
Published
2023-01-23 22:36
Modified
2024-08-02 10:13
Severity ?
3.5 (Low) - CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Summary
cmark-gfm is GitHub's fork of cmark, a CommonMark parsing and rendering library and program in C. Versions prior to 0.29.0.gfm.7 are subject to several polynomial time complexity issues in cmark-gfm that may lead to unbounded resource exhaustion and subsequent denial of service. Various commands, when piped to cmark-gfm with large values, cause the running time to increase quadratically. These vulnerabilities have been patched in version 0.29.0.gfm.7.
References
https://github.com/github/cmark-gfm/security/advisories/GHSA-29g3-96g3-jg6cx_refsource_CONFIRM
Impacted products
Vendor Product Version
Show details on NVD website

To clipboard 

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cve-2022-24724
Vulnerability from cvelistv5
Published
2022-03-03 19:35
Modified
2024-08-03 04:20
Severity ?
8.8 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
cmark-gfm is GitHub's extended version of the C reference implementation of CommonMark. Prior to versions 0.29.0.gfm.3 and 0.28.3.gfm.21, an integer overflow in cmark-gfm's table row parsing `table.c:row_from_string` may lead to heap memory corruption when parsing tables who's marker rows contain more than UINT16_MAX columns. The impact of this heap corruption ranges from Information Leak to Arbitrary Code Execution depending on how and where `cmark-gfm` is used. If `cmark-gfm` is used for rendering remote user controlled markdown, this vulnerability may lead to Remote Code Execution (RCE) in applications employing affected versions of the `cmark-gfm` library. This vulnerability has been patched in the following cmark-gfm versions 0.29.0.gfm.3 and 0.28.3.gfm.21. A workaround is available. The vulnerability exists in the table markdown extensions of cmark-gfm. Disabling the table extension will prevent this vulnerability from being triggered.
References
https://github.com/github/cmark-gfm/security/advisories/GHSA-mc3g-88wq-6f4xx_refsource_CONFIRM
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Z55K6VNVKO2G5SNKRCQ2KDG5SKTX5PVV/vendor-advisory, x_refsource_FEDORA
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TJBFIJEHJZEEDG6MO4MQHZYKUXELH77O/vendor-advisory, x_refsource_FEDORA
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/F7V3HAM5H6YFJG2QFEXACZR3XVWFTXTC/vendor-advisory, x_refsource_FEDORA
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5CYUU662VO6CCXQKVZVOHXX3RGIF2DLQ/vendor-advisory, x_refsource_FEDORA
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RSKUOJ2VAYGTJXPDE2RRPMNLVVMKCI77/vendor-advisory, x_refsource_FEDORA
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KH4UQA6VWVZU5EW3HNEAB7D7BTCNJSJ2/vendor-advisory, x_refsource_FEDORA
http://packetstormsecurity.com/files/166599/cmark-gfm-Integer-overflow.htmlx_refsource_MISC
Impacted products
Vendor Product Version
Show details on NVD website

To clipboard 

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