CVE-2011-0491

NameCVE-2011-0491
DescriptionThe tor_realloc function in Tor before 0.2.1.29 and 0.2.2.x before 0.2.2.21-alpha does not validate a certain size value during memory allocation, which might allow remote attackers to cause a denial of service (daemon crash) via unspecified vectors, related to "underflow errors."
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)
ReferencesDSA-2148-1
NVD severitymedium

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
tor (PTS)stretch0.2.9.16-1fixed
stretch (security)0.2.9.15-1fixed
buster, buster (security)0.3.5.16-1fixed
bullseye (security), bullseye0.4.5.10-1~deb11u1fixed
bookworm, sid0.4.6.8-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
torsourcelenny0.2.1.29-1~lenny+1DSA-2148-1
torsource(unstable)0.2.1.29-1

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