Vulnerability Details : CVE-2021-28116
Squid through 4.14 and 5.x through 5.0.5, in some configurations, allows information disclosure because of an out-of-bounds read in WCCP protocol data. This can be leveraged as part of a chain for remote code execution as nobody.
Vulnerability category: Execute codeInformation leak
Products affected by CVE-2021-28116
- cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:*:*:*:*:*:*:*:*
- cpe:2.3:a:squid-cache:squid:*:*:*:*:*:*:*:*
Threat overview for CVE-2021-28116
Top countries where our scanners detected CVE-2021-28116
Top open port discovered on systems with this issue
3128
IPs affected by CVE-2021-28116 2,162,989
Threat actors abusing to this issue?
Yes
Find out if you* are
affected by CVE-2021-28116!
*Directly or indirectly through your vendors, service providers and 3rd parties.
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attack surface intelligence
from SecurityScorecard.
Exploit prediction scoring system (EPSS) score for CVE-2021-28116
2.07%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 89 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-28116
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
4.3
|
MEDIUM | AV:N/AC:M/Au:N/C:P/I:N/A:N |
8.6
|
2.9
|
NIST | |
3.7
|
LOW | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N |
2.2
|
1.4
|
MITRE | |
5.3
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |
3.9
|
1.4
|
NIST |
CWE ids for CVE-2021-28116
-
The product reads data past the end, or before the beginning, of the intended buffer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-28116
-
http://www.openwall.com/lists/oss-security/2021/10/04/1
oss-security - CVE-2021-28116 / ZDI-CAN-11610 / SQUID-2020:12 Out-Of-Bounds memory access in WCCPv2Mailing List;Third Party Advisory
-
https://www.zerodayinitiative.com/advisories/ZDI-21-157/
ZDI-21-157 | Zero Day InitiativeThird Party Advisory;VDB Entry
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LSQ3U54ZCNXR44QRPW3AV2VCS6K3TKCF/
[SECURITY] Fedora 34 Update: squid-5.0.6-1.fc34 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
-
https://security.gentoo.org/glsa/202105-14
Squid: Multiple vulnerabilities (GLSA 202105-14) — Gentoo securityThird Party Advisory
-
https://www.debian.org/security/2022/dsa-5171
Debian -- Security Information -- DSA-5171-1 squidThird Party Advisory
-
https://github.com/squid-cache/squid/security/advisories/GHSA-rgf3-9v3p-qp82
Page not found · GitHub · GitHubBroken Link
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/T4EPIWUZDJAXADDHVOPKRBTQHPBR6H66/
[SECURITY] Fedora 33 Update: squid-4.15-1.fc33 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
-
http://www.squid-cache.org/Versions/
squid : Optimising Web DeliveryProduct;Vendor Advisory
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