VulnerabilityModified
CVE-2023-6207
Ownership mismanagement led to a use-after-free in ReadableByteStreams This vulnerability affects Firefox < 120, Firefox ESR < 115.5.0, and Thunderbird < 115.5.
HIGH 8.8EPSS 0.79%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.79%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Ownership mismanagement led to a use-after-free in ReadableByteStreams This vulnerability affects Firefox < 120, Firefox ESR < 115.5.0, and Thunderbird < 115.5.
- CVSS 3.1
- 8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 0.79% probability · 54th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-416
- Affected
- mozilla/firefox · mozilla/firefox esr · mozilla/thunderbird · debian/debian linux
- Source
- security@mozilla.org
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1861344Issue Tracking, Permissions Required
- https://lists.debian.org/debian-lts-announce/2023/11/msg00017.htmlMailing List
- https://lists.debian.org/debian-lts-announce/2023/11/msg00030.html
- https://www.debian.org/security/2023/dsa-5561Third Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-49/Release Notes, Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-50/Release Notes, Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-52/Release Notes, Vendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1861344Issue Tracking, Permissions Required
- https://lists.debian.org/debian-lts-announce/2023/11/msg00017.htmlMailing List
- https://lists.debian.org/debian-lts-announce/2023/11/msg00030.html
- https://www.debian.org/security/2023/dsa-5561Third Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-49/Release Notes, Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-50/Release Notes, Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-52/Release Notes, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.