CVE-2016-4053
Squid 3.x before 3.5.17 and 4.x before 4.0.9 allow remote attackers to obtain sensitive stack layout information via crafted Edge Side Includes (ESI) responses, related to incorrect use of assert and
02 Description
Squid 3.x before 3.5.17 and 4.x before 4.0.9 allow remote attackers to obtain sensitive stack layout information via crafted Edge Side Includes (ESI) responses, related to incorrect use of assert and
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 14.35% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 96.4% of scored records. A rank, not a probability.
- NVD base score
- 3.7 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- Moderate. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2016-04-25 14:00Z10 YR AGO
- Last updated
- 2024-08-06 00:17Z2 YR AGO
- Reserved
- 2016-04-20
- Assigning CNA
- mitre
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- Data version
- 5.1
- Document digest
- 23b2285651f4e843362b2453b0f94e3fa3a213fa6e25736c47da7ce6f3336229
05 Affected products
06 References
- www.squid-cache.orghttp://www.squid-cache.org/Advisories/SQUID-2016_6.txt
- security.gentoo.orgGLSA-201607-01https://security.gentoo.org/glsa/201607-01
- www.oracle.comhttp://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html
- www.oracle.comhttp://www.oracle.com/technetwork/security-advisory/cpujul2016-2881720.html
- lists.opensuse.orgSUSE-SU-2016:1996http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00010.html
- www.openwall.com[oss-security] 20160421 CVE Request: Squid HTTP Caching Proxy multiple issueshttp://www.openwall.com/lists/oss-security/2016/04/20/6
- www.ubuntu.comUSN-2995-1http://www.ubuntu.com/usn/USN-2995-1
- access.redhat.comRHSA-2016:1140https://access.redhat.com/errata/RHSA-2016:1140
- lists.opensuse.orgopenSUSE-SU-2016:2081http://lists.opensuse.org/opensuse-updates/2016-08/msg00069.html
- access.redhat.comRHSA-2016:1138https://access.redhat.com/errata/RHSA-2016:1138
- www.securityfocus.com91787http://www.securityfocus.com/bid/91787
- access.redhat.comRHSA-2016:1139https://access.redhat.com/errata/RHSA-2016:1139
- lists.opensuse.orgSUSE-SU-2016:2089http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00040.html
- www.openwall.com[oss-security] 20160420 Re: CVE Request: Squid HTTP Caching Proxy multiple issueshttp://www.openwall.com/lists/oss-security/2016/04/20/9
- www.securitytracker.com1035647http://www.securitytracker.com/id/1035647
- www.debian.orgDSA-3625http://www.debian.org/security/2016/dsa-3625
- www.securityfocus.com86788http://www.securityfocus.com/bid/86788
07 Fixed in
Ubuntu 14.04 LTS
- squid3 Fixed in 3.3.8-1ubuntu6.8
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 16.04 LTS
- squid3 Fixed in 3.5.12-1ubuntu7.2
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.