Vulnerability in Mozilla Firefox
CVE-2023-5388
NSS was susceptible to a timing side-channel attack when performing RSA decryption. This attack could potentially allow an attacker to recover the private data. This vulnerability affects Firefox < 124, Firefox ESR < 115.9, and Thunderbird < 115.9.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L.
EPSS exploit prediction
EPSS: 0.008 (55.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 56th percentile — 55.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000
Affected products
- Mozilla Firefox — versions unspecified
- Mozilla Firefox Esr — versions unspecified
- Mozilla Thunderbird — versions unspecified
- Debian Linux — versions 10.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- bugzilla.mozilla.org/show_bug.cgi (Issue Tracking, Vendor Advisory)
- www.mozilla.org/security/advisories/mfsa2024-12/ (Vendor Advisory)
- www.mozilla.org/security/advisories/mfsa2024-13/ (Vendor Advisory)
- www.mozilla.org/security/advisories/mfsa2024-14/ (Vendor Advisory)
- lists.debian.org/debian-lts-announce/2024/03/msg00022.html (Mailing List, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2024/03/msg00028.html (Mailing List, Third Party Advisory)
- af854a3a-2127-422b-91ae-364da2661108
Frequently asked questions
- What is CVE-2023-5388?
- CVE-2023-5388 is a medium-severity vulnerability in Mozilla Firefox, classified under Observable Discrepancy. CVSS score: 6.5/10. Published 2024-03-19.
- How severe is CVE-2023-5388?
- Medium severity. CVSS v3 base score is 6.5 out of 10.
- Is CVE-2023-5388 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.