CVE-2017-7805
- State
- Published
- Severity
- Not scored
- Published
- Jun 11, 2018
- Updated
- Aug 5, 2024
- Reserved
- Apr 12, 2017
Description
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.
Scores
The record has no CVSS score.
Weaknesses
The record names no weakness.
Affected Products
| Product | Versions |
|---|---|
FirefoxMozilla |
|
Firefox ESRMozilla |
|
ThunderbirdMozilla |
|
References
- RHSA-2017:2832vendor-advisory
- 101059vdb-entry
- [debian-lts-announce] 20171101 [SECURITY] [DLA 1153-1] icedove/thunderbird security updatemailing-list
- https://www.mozilla.org/security/advisories/mfsa2017-22/
- https://bugzilla.mozilla.org/show_bug.cgi?id=1377618
- 1039465vdb-entry
- https://www.mozilla.org/security/advisories/mfsa2017-21/
- DSA-4014vendor-advisory
- http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html
- https://www.mozilla.org/security/advisories/mfsa2017-23/
- DSA-3998vendor-advisory
- DSA-3987vendor-advisory
- GLSA-201803-14vendor-advisory
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