CVE-2017-3731

NameCVE-2017-3731
DescriptionIf an SSL/TLS server or client is running on a 32-bit host, and a specific cipher is being used, then a truncated packet can cause that server or client to perform an out-of-bounds read, usually resulting in a crash. For OpenSSL 1.1.0, the crash can be triggered when using CHACHA20/POLY1305; users should upgrade to 1.1.0d. For Openssl 1.0.2, the crash can be triggered when using RC4-MD5; users who have not disabled that algorithm should update to 1.0.2k.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SuSE, Mageia, GitHub code/issues, web search, more)
ReferencesDLA-814-1, DSA-3773-1
NVD severitymedium (attack range: remote)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
openssl (PTS)wheezy1.0.1e-2+deb7u20vulnerable
wheezy (security)1.0.1t-1+deb7u2fixed
jessie (security), jessie1.0.1t-1+deb8u6fixed
buster, sid, stretch1.1.0f-3fixed
openssl1.0 (PTS)buster, sid, stretch1.0.2l-2fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
opensslsource(unstable)1.1.0d-1medium
opensslsourcejessie1.0.1t-1+deb8u6mediumDSA-3773-1
opensslsourcewheezy1.0.1t-1+deb7u2mediumDLA-814-1
openssl1.0source(unstable)1.0.2k-1medium

Notes

https://www.openssl.org/news/secadv/20170126.txt
Fix for 1.0.2: https://git.openssl.org/gitweb/?p=openssl.git;a=commit;h=51d009043670a627d6abe66894126851cf3690e9
Fix for 1.1.0: https://git.openssl.org/gitweb/?p=openssl.git;a=commit;h=f3a7e57c92b2c9b87dc4b2997f2ebda6781300d0
and https://git.openssl.org/gitweb/?p=openssl.git;a=commit;h=00d965474b22b54e4275232bc71ee0c699c5cd21

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