CVE-2023-46724

Description

Squid is a caching proxy for the Web. Due to an Improper Validation of Specified Index bug, Squid versions 3.3.0.1 through 5.9 and 6.0 prior to 6.4 compiled using `--with-openssl` are vulnerable to a Denial of Service attack against SSL Certificate validation. This problem allows a remote server to perform Denial of Service against Squid Proxy by initiating a TLS Handshake with a specially crafted SSL Certificate in a server certificate chain. This attack is limited to HTTPS and SSL-Bump. This bug is fixed in Squid version 6.4. In addition, patches addressing this problem for the stable releases can be found in Squid's patch archives. Those who you use a prepackaged version of Squid should refer to the package vendor for availability information on updated packages.

Problem types

CWE-125: Out-of-bounds Read

CWE-129: Improper Validation of Array Index

CWE-786: Access of Memory Location Before Start of Buffer

CWE-823: Use of Out-of-range Pointer Offset

CWE-1285: Improper Validation of Specified Index, Position, or Offset in Input

Product status

References

https://github.com/squid-cache/squid/security/advisories/GHSA-73m6-jm96-c6r3

https://github.com/squid-cache/squid/commit/b70f864940225dfe69f9f653f948e787f99c3810

http://www.squid-cache.org/Versions/v5/SQUID-2023_4.patch

http://www.squid-cache.org/Versions/v6/SQUID-2023_4.patch

https://security.netapp.com/advisory/ntap-20231208-0001/

https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MEV66D3PAAY6K7TWDT3WZBLCPLASFJDC/

https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/A5QASTMCUSUEW3UOMKHZJB3FTONWSRXS/

cve.org CVE-2023-46724

nvd.nist.gov CVE-2023-46724

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