CVE-2012-4216: canonical ubuntu_linux Use After Free

CVSS: 9.3v2.0HighModified

Published 21-11-2012Last modified 06-08-2024

Vulnerability summary

CVE-2012-4216 is a high (CVSS 9.3) Use After Free vulnerability in canonical ubuntu_linux. EPSS estimates a 6.07% chance of exploitation in the next 30 days, higher than 93.3% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk

70/100

0100

High · default modelHow is this calculated?

CVSS score

9.3/10

010

High · v2.0 (NVD)

EPSS score

6.07%

0%100%

Low · 0.00 pp in 30 days

KEVNot listedIn no KEV catalog

RansomwareNone recordedNo known use recorded

Public exploits1reference

Advisory lineage

Upstream 0 · Downstream 7 · Related 2

DSA-2583-1 DSA-2584-1 DSA-2588-1 OPENSUSE-SU-2024:10071-1 OPENSUSE-SU-2024:10230-1 RHSA-2012:1482+1 more

Timeline

21-11-2012
PublishedVulnerability first disclosed.
06-08-2024
Last modifiedVulnerability information updated.

Description

Use-after-free vulnerability in the gfxFont::GetFontEntry 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 or cause a denial of service (heap memory corruption) via unspecified vectors.

CVSS metrics

1 score · 1 source · 1 version

v2.09.3

EPSS trend

Probability

6.07%

Chance of exploitation in the next 30 days

Percentile

93%

Versus all other CVEs

30-day change

0.00 pp

From 6.07% on 18-09-2026

18-09-202618-10-2026

EPSS score

6.07%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found

referenceUnverified
Exploit Reference (bugzilla.mozilla.org)
Maturity: unknown

Weaknesses

CWE · root cause

CWE-416Use After FreeThe product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

Affected systems

Mozilla4 products

firefox< 17.0 | ≥ 10.0, < 10.0.11
seamonkey< 2.14
thunderbird< 17.0
thunderbird_esr≥ 10.0, < 10.0.11

Redhat4 products

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

Debian1 product

debian_linuxEOL6.0 | 7.0

Opensuse1 product

opensuseEOL11.4 | 12.1 | 12.2

6 vendors · 14 products

References

29 links

exchange.xforce.ibmcloud.com/vulnerabilities/80189VDB EntryX Refsource XFThird Party Advisory
www.ubuntu.com/usn/USN-1638-3Vendor AdvisoryX Refsource UBUNTUThird Party Advisory
secunia.com/advisories/51370Third Party AdvisoryX Refsource SECUNIA
www.ubuntu.com/usn/USN-1638-2Vendor AdvisoryX Refsource UBUNTUThird Party Advisory
lists.opensuse.org/opensuse-updates/2012-11/msg00093.htmlVendor AdvisoryX Refsource SUSEMailing ListThird Party Advisory
osvdb.org/87609VDB EntryX Refsource OSVDBBroken Link
www.ubuntu.com/usn/USN-1636-1Vendor AdvisoryX Refsource UBUNTUThird Party Advisory
lists.opensuse.org/opensuse-security-announce/2013-01/msg00022.htmlVendor AdvisoryX Refsource SUSEMailing ListThird Party Advisory
rhn.redhat.com/errata/RHSA-2012-1483.htmlVendor AdvisoryX Refsource REDHATThird Party Advisory
www.securityfocus.com/bid/56634VDB EntryX Refsource BIDThird Party Advisory

Show all 29 references

www.debian.org/security/2012/dsa-2584Vendor AdvisoryX Refsource DEBIANThird Party Advisory
rhn.redhat.com/errata/RHSA-2012-1482.htmlVendor AdvisoryX Refsource REDHATThird Party Advisory
secunia.com/advisories/51434Third Party AdvisoryX Refsource SECUNIA
lists.opensuse.org/opensuse-updates/2012-11/msg00090.htmlVendor AdvisoryX Refsource SUSEMailing ListThird Party Advisory
secunia.com/advisories/51439Third Party AdvisoryX Refsource SECUNIA
bugzilla.mozilla.org/show_bug.cgi?id=798853X Refsource CONFIRMExploitIssue TrackingPatchVendor Advisory
secunia.com/advisories/51440Third Party AdvisoryX Refsource SECUNIA
www.ubuntu.com/usn/USN-1638-1Vendor AdvisoryX Refsource UBUNTUThird Party Advisory
lists.opensuse.org/opensuse-security-announce/2012-11/msg00021.htmlVendor AdvisoryX Refsource SUSEMailing ListThird Party Advisory
secunia.com/advisories/51359Third Party AdvisoryX Refsource SECUNIA
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
secunia.com/advisories/51381Third Party AdvisoryX Refsource SECUNIA
oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16902VDB EntrySignatureX Refsource OVALThird Party Advisory
www.debian.org/security/2012/dsa-2583Vendor AdvisoryX Refsource DEBIANThird Party Advisory
secunia.com/advisories/51369Third Party AdvisoryX Refsource SECUNIA
www.mozilla.org/security/announce/2012/mfsa2012-105.htmlX Refsource CONFIRMVendor Advisory
secunia.com/advisories/51360Third Party AdvisoryX Refsource SECUNIA
www.debian.org/security/2012/dsa-2588Vendor AdvisoryX Refsource DEBIANThird Party Advisory

Vulnerability summary

Advisory lineage

Timeline

Description

CVSS metrics

EPSS trend

Known exploited

Public exploits

Weaknesses

Affected systems

References

Related vulnerabilities