DescriptionThe rsa_pss_params_parse function in libstrongswan/credentials/keys/signature_params.c in strongSwan 5.6.1 allows remote attackers to cause a denial of service via a crafted RSASSA-PSS signature that lacks a mask generation function parameter.
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)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
strongswan (PTS)stretch5.5.1-4+deb9u4fixed
stretch (security)5.5.1-4+deb9u6fixed
buster, buster (security)5.7.2-1+deb10u2fixed
bullseye (security), bullseye5.9.1-1+deb11u2fixed
bookworm, sid5.9.6-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
strongswansourcewheezy(not affected)
strongswansourcejessie(not affected)
strongswansourcestretch(not affected)


[stretch] - strongswan <not-affected> (Vulnerable code introduced later)
[jessie] - strongswan <not-affected> (Vulnerable code introduced later)
[wheezy] - strongswan <not-affected> (Vulnerable code introduced later)

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