CVE-2017-7805
Vulnerability from cvelistv5
Published
2018-06-11 21:00
Modified
2024-08-05 16:12
Severity ?
Summary
During TLS 1.2 exchanges, handshake hashes are generated which point to a message buffer. This saved data is used for later messages but in some cases, the handshake transcript can exceed the space available in the current buffer, causing the allocation of a new buffer. This leaves a pointer pointing to the old, freed buffer, resulting in a use-after-free when handshake hashes are then calculated afterwards. This can result in a potentially exploitable crash. This vulnerability affects Firefox < 56, Firefox ESR < 52.4, and Thunderbird < 52.4.
References
security@mozilla.orghttp://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html
security@mozilla.orghttp://www.securityfocus.com/bid/101059Third Party Advisory, VDB Entry
security@mozilla.orghttp://www.securitytracker.com/id/1039465Third Party Advisory, VDB Entry
security@mozilla.orghttps://access.redhat.com/errata/RHSA-2017:2832Third Party Advisory
security@mozilla.orghttps://bugzilla.mozilla.org/show_bug.cgi?id=1377618Issue Tracking, Vendor Advisory
security@mozilla.orghttps://lists.debian.org/debian-lts-announce/2017/11/msg00000.htmlThird Party Advisory
security@mozilla.orghttps://security.gentoo.org/glsa/201803-14Third Party Advisory
security@mozilla.orghttps://www.debian.org/security/2017/dsa-3987Third Party Advisory
security@mozilla.orghttps://www.debian.org/security/2017/dsa-3998Third Party Advisory
security@mozilla.orghttps://www.debian.org/security/2017/dsa-4014Third Party Advisory
security@mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2017-21/Vendor Advisory
security@mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2017-22/Vendor Advisory
security@mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2017-23/Vendor Advisory
Impacted products
MozillaFirefox
MozillaFirefox ESR
MozillaThunderbird
Show details on NVD website

To clipboard 

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  }
}


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