CVE-2012-5839: canonical ubuntu_linux Out-of-bounds Write
CVSS: 9.3v2.0HighModified
Published 21-11-2012Last modified 06-08-2024
Vulnerability summary
CVE-2012-5839 is a high (CVSS 9.3) Out-of-bounds Write vulnerability in canonical ubuntu_linux. EPSS estimates a 7.00% chance of exploitation in the next 30 days, higher than 94% of scored vulnerabilities.
CVSS score
9.3/10
010
High · v2.0 (NVD)EPSS score
7.00%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 4 · Related 2Timeline
- 21-11-2012PublishedVulnerability first disclosed.
- 06-08-2024Last modifiedVulnerability information updated.
Description
Heap-based buffer overflow in the gfxShapedWord::CompressedGlyph::IsClusterStart function in Mozilla Firefox before 17.0, Firefox ESR 10.x before 10.0.11, Thunderbird before 17.0, Thunderbird ESR 10.x before 10.0.11, and SeaMonkey before 2.14 allows remote attackers to execute arbitrary code via unspecified vectors.
CVSS metrics
1 score · 1 source · 1 versionHigh 9.3Preferred score · NVD (NIST)
AV:N/AC:M/Au:N/C:C/I:C/A:CSourcesSingle source
EPSS trend
Probability
7.00%
Chance of exploitation in the next 30 days
Percentile
94%
Versus all other CVEs
30-day change
0.00 pp
From 7.00% on 18-09-2026
18-09-202618-10-2026
EPSS score7.00%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Mozilla4 products
- firefox< 10.0.11 | < 17.0
- seamonkey< 2.14
- thunderbird< 17.0
- thunderbird_esr< 10.0.11
Redhat4 products
- enterprise_linux_desktop5.0 | 6.0
- enterprise_linux_eus6.3
- enterprise_linux_server5.0 | 6.0
- enterprise_linux_workstation5.0 | 6.0
Suse3 products
- linux_enterprise_desktop10:sp4 | 11:sp2
- linux_enterprise_server10:sp4 | 11:sp2
- linux_enterprise_software_development_kit10:sp4 | 11:sp2
Canonical1 product
- ubuntu_linuxEOL10.04 | 11.10 | 12.04 | 12.10
Opensuse1 product
- opensuseEOL11.4 | 12.1 | 12.2
5 vendors · 13 products
References
27 links- oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16968VDB EntrySignatureX Refsource OVALThird Party Advisory
- lists.opensuse.org/opensuse-updates/2012-11/msg00093.htmlVendor AdvisoryX Refsource SUSEMailing ListThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2013-01/msg00022.htmlVendor AdvisoryX Refsource SUSEMailing ListThird Party Advisory
Show all 27 references
- lists.opensuse.org/opensuse-updates/2012-11/msg00090.htmlVendor AdvisoryX Refsource SUSEMailing ListThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2012-11/msg00021.htmlVendor AdvisoryX Refsource SUSEMailing ListThird Party Advisory
- www.mandriva.com/security/advisories?name=MDVSA-2012:173Vendor AdvisoryX Refsource MANDRIVAThird Party Advisory
- lists.opensuse.org/opensuse-updates/2012-11/msg00092.htmlVendor AdvisoryX Refsource SUSEMailing ListThird Party Advisory