Out-of-bounds Read The advisory has been revoked - it doesn't affect any version of package MozillaFirefox-buildsymbols (opens in a new tab)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-SLES151-MOZILLAFIREFOXBUILDSYMBOLS-2714091
- published14 Apr 2022
- disclosed13 Mar 2020
Introduced: 13 Mar 2020
CVE-2020-6806 (opens in a new tab)Amendment
The SLES security team deemed this advisory irrelevant for SLES:15.1.
NVD Description
Note: Versions mentioned in the description apply only to the upstream MozillaFirefox-buildsymbols package and not the MozillaFirefox-buildsymbols package as distributed by SLES.
By carefully crafting promise resolutions, it was possible to cause an out-of-bounds read off the end of an array resized during script execution. This could have led to memory corruption and a potentially exploitable crash. This vulnerability affects Thunderbird < 68.6, Firefox < 74, Firefox < ESR68.6, and Firefox ESR < 68.6.
References
- https://www.suse.com/security/cve/CVE-2020-6806.html
- https://bugzilla.suse.com/1166238
- http://packetstormsecurity.com/files/157524/Firefox-js-ReadableStreamCloseInternal-Out-Of-Bounds-Access.html
- https://bugzilla.mozilla.org/show_bug.cgi?id=1612308
- https://usn.ubuntu.com/4328-1/
- https://usn.ubuntu.com/4335-1/
- https://www.mozilla.org/security/advisories/mfsa2020-08/
- https://www.mozilla.org/security/advisories/mfsa2020-09/
- https://www.mozilla.org/security/advisories/mfsa2020-10/