CVE-2006-4924

NameCVE-2006-4924
Descriptionsshd in OpenSSH before 4.4, when using the version 1 SSH protocol, allows remote attackers to cause a denial of service (CPU consumption) via an SSH packet that contains duplicate blocks, which is not properly handled by the CRC compensation attack detector.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
ReferencesDSA-1189-1, DSA-1212
Debian Bugs389995

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
openssh (PTS)bullseye (security), bullseye1:8.4p1-5+deb11u3fixed
bookworm, bookworm (security)1:9.2p1-2+deb12u3fixed
trixie, sid1:9.9p1-3fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
opensshsourcesarge1:3.8.1p1-8.sarge.6DSA-1212
opensshsource(unstable)1:4.3p2-4low389995
openssh-krb5sourcesarge3.8.1p1-7sarge1DSA-1189-1
openssh-krb5source(unstable)(unfixed)low
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