ALT-PU-2026-9884-3

Package update squid in branch sisyphus

Version7.6-alt1

Published2026-07-21

Max severityMEDIUM

Severity:

Closed issues (3)

MEDIUM6.5

Уязвимость функции strchr() прокси-сервера Squid, позволяющая нарушителю получить несанкционированный доступ к защищаемой информации

Published: 2026-06-23Modified: 2026-07-15

CVSS 3.xMEDIUM 6.5

CVSS:3.x/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

CVSS 2.0MEDIUM 6.8

CVSS:2.0/AV:N/AC:L/Au:S/C:C/I:N/A:N

References

MEDIUM6.5

Squid is a caching proxy for the Web. Prior to 7.6, due to an improper validation of syntactic correctness of input in the FTP gateway (src/clients/FtpGateway.cc), Squid is vulnerable to an out-of-bounds read: when a listing entry date in the TypeA or TypeB directory-listing formats is not followed by a filename, parsing was not restricted to the input buffer, so a trusted client accessing a misbehaving FTP server through Squid's gateway feature could read memory from random unrelated transactions. This issue is fixed in version 7.6.

Published: 2026-07-16Modified: 2026-07-19

CVSS 3.xMEDIUM 6.5

CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

References

MEDIUM5.5

Squid is a caching proxy for the Web. Prior to 7.6, due to an improper input validation bug in cache digest reply handling (peerDigestSwapInMask in src/peer_digest.cc), Squid is vulnerable to a heap-based buffer overflow: a cache digest's on-the-wire size may be larger than the mask_size declared within the digest, so a trusted peer sending a maliciously crafted reply to a cache_digest request message can trigger the overflow. This attack is limited to Squid instances compiled with the --enable-cache-digests option and configured with cache_peer entries. This issue is fixed in version 7.6.

Published: 2026-07-16Modified: 2026-07-19

CVSS 3.xMEDIUM 5.5

CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:H

References