Vulnerability in Mozilla Firefox
CVE-2015-7575
Mozilla Network Security Services (NSS) before 3.20.2, as used in Mozilla Firefox before 43.0.2 and Firefox ESR 38.x before 38.5.2, does not reject MD5 signatures in Server Key Exchange messages in TLS 1.2 Handshake Protocol traffic, which makes it easier for man-in-the-middle attackers to spoof servers by triggering a collision.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.029 (86.4th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 86th percentile — 86.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.029 · newest: 0.029 · change: 0.000
Affected products
- Mozilla Firefox — versions 38.0, 38.0.1, 38.0.5
- Mozilla Network Security Services
- Canonical Ubuntu Linux — versions 14.04, 15.04, 15.10
- openSUSE Leap — versions 42.1
- openSUSE — versions 13.1, 13.2
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.debian.org/security/2016/dsa-3688 (vendor-advisory)
- www.debian.org/security/2016/dsa-3457 (vendor-advisory)
- www.debian.org/security/2016/dsa-3491 (vendor-advisory)
- lists.opensuse.org/opensuse-security-announce/2016-01/msg00047.html (vendor-advisory)
- www.securitytracker.com/id/1036467 (vdb-entry)
- security.gentoo.org/glsa/201701-46 (vendor-advisory)
- lists.opensuse.org/opensuse-security-announce/2016-01/msg00048.html (vendor-advisory)
- lists.opensuse.org/opensuse-updates/2016-01/msg00058.html (vendor-advisory)
- www.oracle.com/technetwork/security-advisory/cpujul2016-2881720.html (Third Party Advisory)
- www.ubuntu.com/usn/USN-2884-1 (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2015-7575?
- CVE-2015-7575 is a medium-severity vulnerability in Mozilla Firefox, classified under CWE-19. CVSS score: 5.9/10. Published 2016-01-09.
- How severe is CVE-2015-7575?
- Medium severity. CVSS v3 base score is 5.9 out of 10.
- Is CVE-2015-7575 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.