CVE-2015-1791

NameCVE-2015-1791
DescriptionRace condition in the ssl3_get_new_session_ticket function in ssl/s3_clnt.c in OpenSSL before 0.9.8zg, 1.0.0 before 1.0.0s, 1.0.1 before 1.0.1n, and 1.0.2 before 1.0.2b, when used for a multi-threaded client, allows remote attackers to cause a denial of service (double free and application crash) or possibly have unspecified other impact by providing a NewSessionTicket during an attempt to reuse a ticket that had been obtained earlier.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SuSE, Mageia, GitHub code/issues, web search, more)
ReferencesDLA-247-1, DSA-3287-1
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+deb7u20fixed
wheezy (security)1.0.1t-1+deb7u2fixed
jessie (security), jessie1.0.1t-1+deb8u6fixed
stretch1.1.0f-3fixed
buster, sid1.1.0f-5fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
opensslsource(unstable)1.0.2b-1medium
opensslsourcejessie1.0.1k-3+deb8u1mediumDSA-3287-1
opensslsourcesqueeze0.9.8o-4squeeze21mediumDLA-247-1
opensslsourcewheezy1.0.1e-2+deb7u17mediumDSA-3287-1

Notes

https://git.openssl.org/?p=openssl.git;a=commit;h=98ece4eebfb6cd45cc8d550c6ac0022965071afc
https://git.openssl.org/?p=openssl.git;a=commit;h=dcad51bc13c9b716d9a66248bcc4038c071ff158
https://git.openssl.org/?p=openssl.git;a=commit;h=708cf593587e2fda67dae9782991ff9fccc781eb

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