CVE-2014-8639: mozilla firefox
Vulnerability summary
CVE-2014-8639 is a medium (CVSS 6.8) vulnerability in mozilla firefox. EPSS estimates a 1.90% chance of exploitation in the next 30 days, higher than 79.3% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 11 · Related 5Timeline
- 14-01-2015PublishedVulnerability first disclosed.
- 06-08-2024Last modifiedVulnerability information updated.
Description
Mozilla Firefox before 35.0, Firefox ESR 31.x before 31.4, Thunderbird before 31.4, and SeaMonkey before 2.32 do not properly interpret Set-Cookie headers within responses that have a 407 (aka Proxy Authentication Required) status code, which allows remote HTTP proxy servers to conduct session fixation attacks by providing a cookie name that corresponds to the session cookie of the origin server.
CVSS metrics
1 score · 1 source · 1 versionEPSS trend
Probability
1.90%
Chance of exploitation in the next 30 days
Percentile
79%
Versus all other CVEs
30-day change
0.00 pp
From 1.90% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeNo weakness data has been published for this record.
Affected systems
Mozilla4 products
- firefox≤ 34.0.5 | 31.0 | 31.1.0 | 31.1.1 | 31.3.0
- firefox_esr31.2
- seamonkey≤ 2.31
- thunderbird≤ 31.3.0
Ubuntu2 products
- firefox< 35.0+build3-0ubuntu0.14.04.2
- thunderbird< 1:31.4.0+build1-0ubuntu0.14.04.1
2 vendors · 6 products
References
44 links- linux.oracle.com/errata/ELSA-2015-0047.htmlX Refsource CONFIRM
Show all 44 references
- www.oracle.com/technetwork/topics/security/bulletinapr2015-2511959.htmlX Refsource CONFIRM
- linux.oracle.com/errata/ELSA-2015-0046.htmlX Refsource CONFIRM
- bugzilla.mozilla.org/show_bug.cgi?id=1095859X Refsource CONFIRM