VulnerabilityModified
CVE-2023-4048
An out-of-bounds read could have led to an exploitable crash when parsing HTML with DOMParser in low memory situations.
HIGH 7.5EPSS 0.93%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.93%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
An out-of-bounds read could have led to an exploitable crash when parsing HTML with DOMParser in low memory situations. This vulnerability affects Firefox < 116, Firefox ESR < 102.14, and Firefox ESR < 115.1.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.93% probability · 59th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-125
- Affected
- mozilla/firefox · debian/debian linux
- Source
- security@mozilla.org
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1841368Issue Tracking, Permissions Required
- https://lists.debian.org/debian-lts-announce/2023/08/msg00008.htmlThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2023/08/msg00010.htmlThird Party Advisory
- https://www.debian.org/security/2023/dsa-5464Third Party Advisory
- https://www.debian.org/security/2023/dsa-5469Third Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-29/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-30/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-31/Vendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1841368Issue Tracking, Permissions Required
- https://lists.debian.org/debian-lts-announce/2023/08/msg00008.htmlThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2023/08/msg00010.htmlThird Party Advisory
- https://www.debian.org/security/2023/dsa-5464Third Party Advisory
- https://www.debian.org/security/2023/dsa-5469Third Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-29/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-30/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-31/Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.