CVE-2015-4520

NameCVE-2015-4520
DescriptionMozilla Firefox before 41.0 and Firefox ESR 38.x before 38.3 allow remote attackers to bypass CORS preflight protection mechanisms by leveraging (1) duplicate cache-key generation or (2) retrieval of a value from an incorrect HTTP Access-Control-* response header.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SuSE, Mageia, GitHub code/issues, web search, more)
ReferencesDSA-3365-1
NVD severitymedium (attack range: remote)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
iceweasel (PTS)wheezy, wheezy (security)38.8.0esr-1~deb7u1fixed
jessie (security)38.8.0esr-1~deb8u1fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
iceweaselsource(unstable)38.3.0esr-1medium
iceweaselsourcejessie38.3.0esr-1~deb8u1mediumDSA-3365-1
iceweaselsourcesqueeze(unfixed)end-of-life
iceweaselsourcewheezy38.3.0esr-1~deb7u1mediumDSA-3365-1

Notes

https://www.mozilla.org/en-US/security/advisories/mfsa2015-111/

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