RHSA-2016_1573
Vulnerability from csaf_redhat - Published: 2016-08-04 12:25 - Updated: 2024-11-22 10:18Summary
Red Hat Security Advisory: squid security update
Severity
Moderate
Notes
Topic: An update for squid is now available for Red Hat Enterprise Linux 6.
Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Details: Squid is a high-performance proxy caching server for web clients, supporting FTP, Gopher, and HTTP data objects.
Security Fix(es):
* It was found that the fix for CVE-2016-4051 released via RHSA-2016:1138 did not properly prevent the stack overflow in the munge_other_line() function. A remote attacker could send specially crafted data to the Squid proxy, which would exploit the cachemgr CGI utility, possibly triggering execution of arbitrary code. (CVE-2016-5408)
Red Hat would like to thank Amos Jeffries (Squid) for reporting this issue.
Terms of Use: This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
It was found that the fix for CVE-2016-4051 released via RHSA-2016:1138 did not properly prevent the stack overflow in the munge_other_line() function. A remote attacker could send specially crafted data to the Squid proxy, which would exploit the cachemgr CGI utility, possibly triggering execution of arbitrary code.
7.5 (High)
Vendor Fix
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://access.redhat.com/articles/11258
After installing this update, the squid service will be restarted automatically.
https://access.redhat.com/errata/RHSA-2016:1573
References
Acknowledgments
Squid
Amos Jeffries
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"title": "Vulnerability description"
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"text": "squid: Buffer overflow vulnerability in cachemgr.cgi tool",
"title": "Vulnerability summary"
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"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
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"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2016-5408"
},
{
"category": "external",
"summary": "RHBZ#1359203",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1359203"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2016-5408",
"url": "https://www.cve.org/CVERecord?id=CVE-2016-5408"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2016-5408",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2016-5408"
}
],
"release_date": "2016-04-20T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2016-08-04T12:25:04+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nAfter installing this update, the squid service will be restarted automatically.",
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],
"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2016:1573"
}
],
"scores": [
{
"cvss_v2": {
"accessComplexity": "HIGH",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "PARTIAL",
"baseScore": 5.1,
"confidentialityImpact": "PARTIAL",
"integrityImpact": "PARTIAL",
"vectorString": "AV:N/AC:H/Au:N/C:P/I:P/A:P",
"version": "2.0"
},
"cvss_v3": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H",
"version": "3.0"
},
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]
}
],
"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "squid: Buffer overflow vulnerability in cachemgr.cgi tool"
}
]
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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