Mageia 2020-0332: squid security update | LinuxSecurity.com
MGASA-2020-0332 - Updated squid packages fix security vulnerability

Publication date: 18 Aug 2020
URL: https://advisories.mageia.org/MGASA-2020-0332.html
Type: security
Affected Mageia releases: 7
CVE: CVE-2020-14058,
     CVE-2020-14059

Due to use of a potentially dangerous function Squid and the default
certificate validation helper are vulnerable to a Denial of Service attack when
processing TLS certificates. This attack is limited to Squid built with OpenSSL
features and opening peer or server connections for HTTPS traffic and SSL-Bump
server handshakes (CVE-2020-14058).

Due to incorrect input validation Squid is vulnerable to a Request Smuggling
and Poisoning attack against the HTTP cache. This attack requires an upstream
server to participate in the smuggling and generate the poison response
sequence. Most popular server software are not vulnerable to participation in
this attack (CVE-2020-14059).

References:
- https://bugs.mageia.org/show_bug.cgi?id=26884
- https://www.squid-cache.org/Advisories/SQUID-2020_6.txt
- https://github.com/squid-cache/squid/security/advisories/GHSA-qf3v-rc95-96j5
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-14058
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-14059

SRPMS:
- 7/core/squid-4.12-2.mga7

Mageia 2020-0332: squid security update

Due to use of a potentially dangerous function Squid and the default certificate validation helper are vulnerable to a Denial of Service attack when processing TLS certificates

Summary

Due to use of a potentially dangerous function Squid and the default certificate validation helper are vulnerable to a Denial of Service attack when processing TLS certificates. This attack is limited to Squid built with OpenSSL features and opening peer or server connections for HTTPS traffic and SSL-Bump server handshakes (CVE-2020-14058).
Due to incorrect input validation Squid is vulnerable to a Request Smuggling and Poisoning attack against the HTTP cache. This attack requires an upstream server to participate in the smuggling and generate the poison response sequence. Most popular server software are not vulnerable to participation in this attack (CVE-2020-14059).

References

- https://bugs.mageia.org/show_bug.cgi?id=26884

- https://www.squid-cache.org/Advisories/SQUID-2020_6.txt

- https://github.com/squid-cache/squid/security/advisories/GHSA-qf3v-rc95-96j5

- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-14058

- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-14059

Resolution

MGASA-2020-0332 - Updated squid packages fix security vulnerability

SRPMS

- 7/core/squid-4.12-2.mga7

Severity
Publication date: 18 Aug 2020
URL: https://advisories.mageia.org/MGASA-2020-0332.html
Type: security
CVE: CVE-2020-14058, CVE-2020-14059

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