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Servers and applications

CVE-2012-5134

Heap-based buffer underflow in the xmlParseAttValueComplex function in parser.c in libxml2 2.9.0 and earlier, as used in Google Chrome before 23.0.1271.91 and other products, allows remote attackers to cause a denial of service or possibly execute arbitrary code via crafted entities in an XML document.

Severity
Medium 6.8
Published
28 Nov 2012
Last changed
16 Jun 2026
Added to UpHeron
1 Nov 2026
Exploit chance
4.4% in the next 30 daysHigher than 91% of CVEs. EPSS by FIRST, 12 Nov 2026
Weakness
Memory buffer errors (CWE-119)
Attack
Over the network · No login needed
Attacker can
Read some data · Change some data · Slow it down
CVSS vector
AV:N/AC:M/Au:N/C:P/I:P/A:P
Sources
NVD

Affected software

SoftwareAffected versions
libxml2Servers and applications · cpe:a:xmlsoft:libxml2
  • Version 2.9.0-rc1
  • Version 2.7.7
  • Version 2.7.6
  • Version 2.7.5
All 118 release lines
  • Every version up to 2.9.0
  • Version 1.7.0
  • Version 1.7.1
  • Version 1.7.2
  • Version 1.7.3
  • Version 1.7.4
  • Version 1.8.0
  • Version 1.8.1
  • Version 1.8.2
  • Version 1.8.3
  • Version 1.8.4
  • Version 1.8.5
  • Version 1.8.6
  • Version 1.8.7
  • Version 1.8.9
  • Version 1.8.10
  • Version 1.8.13
  • Version 1.8.14
  • Version 1.8.16
  • Version 2.0.0
  • Version 2.1.0
  • Version 2.1.1
  • Version 2.2.0-beta
  • Version 2.2.0
  • Version 2.2.1
  • Version 2.2.2
  • Version 2.2.3
  • Version 2.2.4
  • Version 2.2.5
  • Version 2.2.6
  • Version 2.2.7
  • Version 2.2.8
  • Version 2.2.9
  • Version 2.2.10
  • Version 2.2.11
  • Version 2.3.0
  • Version 2.3.1
  • Version 2.3.2
  • Version 2.3.3
  • Version 2.3.4
  • Version 2.3.5
  • Version 2.3.6
  • Version 2.3.7
  • Version 2.3.8
  • Version 2.3.9
  • Version 2.3.10
  • Version 2.3.11
  • Version 2.3.12
  • Version 2.3.13
  • Version 2.3.14
  • Version 2.4.1
  • Version 2.4.2
  • Version 2.4.3
  • Version 2.4.4
  • Version 2.4.5
  • Version 2.4.6
  • Version 2.4.7
  • Version 2.4.8
  • Version 2.4.9
  • Version 2.4.10
  • Version 2.4.11
  • Version 2.4.12
  • Version 2.4.13
  • Version 2.4.14
  • Version 2.4.15
  • Version 2.4.16
  • Version 2.4.17
  • Version 2.4.18
  • Version 2.4.19
  • Version 2.4.20
  • Version 2.4.21
  • Version 2.4.22
  • Version 2.4.23
  • Version 2.4.24
  • Version 2.4.25
  • Version 2.4.26
  • Version 2.4.27
  • Version 2.4.28
  • Version 2.4.29
  • Version 2.4.30
  • Version 2.5.0
  • Version 2.5.4
  • Version 2.5.7
  • Version 2.5.8
  • Version 2.5.10
  • Version 2.5.11
  • Version 2.6.0
  • Version 2.6.1
  • Version 2.6.2
  • Version 2.6.3
  • Version 2.6.4
  • Version 2.6.5
  • Version 2.6.6
  • Version 2.6.7
  • Version 2.6.8
  • Version 2.6.9
  • Version 2.6.11
  • Version 2.6.12
  • Version 2.6.13
  • Version 2.6.14
  • Version 2.6.16
  • Version 2.6.17
  • Version 2.6.18
  • Version 2.6.20
  • Version 2.6.22
  • Version 2.6.26
  • Version 2.6.27
  • Version 2.6.30
  • Version 2.6.32
  • Version 2.7.0
  • Version 2.7.1
  • Version 2.7.2
  • Version 2.7.3
  • Version 2.7.4
  • Version 2.7.5
  • Version 2.7.6
  • Version 2.7.7
  • Version 2.9.0-rc1

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2012-5134
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2012-5134