Use After Free Affecting nss package, versions <0:3.28.4-4.el6_9
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Test your applications- Snyk ID SNYK-CENTOS6-NSS-2146645
- published 26 Jul 2021
- disclosed 28 Sep 2017
Introduced: 28 Sep 2017
CVE-2017-7805 Open this link in a new tabHow to fix?
Upgrade Centos:6
nss
to version 0:3.28.4-4.el6_9 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream nss
package and not the nss
package as distributed by Centos
.
See How to fix?
for Centos:6
relevant fixed versions and status.
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
- http://www.securityfocus.com/bid/101059
- https://bugzilla.mozilla.org/show_bug.cgi?id=1377618
- https://www.mozilla.org/security/advisories/mfsa2017-21/
- https://www.mozilla.org/security/advisories/mfsa2017-22/
- https://www.mozilla.org/security/advisories/mfsa2017-23/
- http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html
- https://access.redhat.com/security/cve/CVE-2017-7805
- https://www.debian.org/security/2017/dsa-3987
- https://www.debian.org/security/2017/dsa-3998
- https://www.debian.org/security/2017/dsa-4014
- https://security.gentoo.org/glsa/201803-14
- https://lists.debian.org/debian-lts-announce/2017/11/msg00000.html
- https://access.redhat.com/errata/RHSA-2017:2832
- http://www.securitytracker.com/id/1039465