CVE-2020-35452

NameCVE-2020-35452
DescriptionApache HTTP Server versions 2.4.0 to 2.4.46 A specially crafted Digest nonce can cause a stack overflow in mod_auth_digest. There is no report of this overflow being exploitable, nor the Apache HTTP Server team could create one, though some particular compiler and/or compilation option might make it possible, with limited consequences anyway due to the size (a single byte) and the value (zero byte) of the overflow
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
ReferencesDLA-2706-1, DSA-4937-1
NVD severitymedium

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
apache2 (PTS)stretch2.4.25-3+deb9u9vulnerable
stretch (security)2.4.25-3+deb9u10fixed
buster2.4.38-3+deb10u4vulnerable
buster (security)2.4.38-3+deb10u5fixed
bullseye, sid2.4.48-3.1fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
apache2sourceexperimental2.4.48-1
apache2sourcestretch2.4.25-3+deb9u10DLA-2706-1
apache2sourcebuster2.4.38-3+deb10u5DSA-4937-1
apache2source(unstable)2.4.46-6

Notes

https://httpd.apache.org/security/vulnerabilities_24.html#CVE-2020-35452
https://github.com/apache/httpd/commit/3b6431eb9c9dba603385f70a2131ab4a01bf0d3b

Search for package or bug name: Reporting problems