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    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.

    Published:Nov 27, 2012
    Last Modified:Apr 11, 2025
    EPS:Nov 28, 2012
    EPSS Score:0.02065
    CVSS Score:6.8

    Affected Products

    Vendor
    Apple
    Product
    Iphone Os
    Vendor
    Google
    Product
    Chrome
    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    Xmlsoft
    Product
    Libxml2

    Exploits

    No exploit reference

    Related CVEs

    CVE-2026-87545 (CVSS 6.5) — Information leak in Mobile in Google Chrome on on iOS prior to 153.0.8010.36 allowed a remote attacker leverag…
    CVE-2026-87609 (CVSS 9.6) — Use after free in Sharing in Google Chrome on on iOS prior to 153.0.8010.36 allowed a remote attacker to execu…
    CVE-2026-87518 (CVSS 5.3) — Observable discrepancy in Safebrowsing in Google Chrome on on iOS prior to 153.0.8010.36 allowed a remote atta…
    CVE-2026-87482 (CVSS 5.9) — Cleartext transmission of sensitive data in HttpsUpgrades in Google Chrome on on iOS prior to 153.0.8010.36 al…
    CVE-2026-87517 (CVSS 3.1) — Race condition in Mobile in Google Chrome on on iOS prior to 153.0.8010.36 allowed a remote attacker leveragin…
    CVE-2026-85047 (CVSS 9.6) — Improper input validation in Transactions Platform in Google Chrome on on iOS prior to 152.0.7977.82 allowed a…
    CVE-2026-78964 (CVSS 9.6) — Use after free in Sync in Google Chrome on on iOS prior to 152.0.7977.65 allowed a remote attacker to potentia…
    CVE-2026-78957 (CVSS 5.5) — Information leak in Mobile in Google Chrome on on iOS prior to 152.0.7977.65 allowed a local attacker to obtai…
    CVE-2026-78981 (CVSS 6.5) — Information leak in Mobile in Google Chrome on on iOS prior to 152.0.7977.65 allowed a local attacker to poten…
    CVE-2026-79105 (CVSS 4.3) — Improper input validation in Mobile in Google Chrome on on iOS prior to 152.0.7977.65 allowed a remote attacke…

    References

    http://git.gnome.org/browse/libxml2/commit/?id=6a36fbe3b3e001a8a840b5c1fdd81cefc9947f0d
    http://googlechromereleases.blogspot.com/2012/11/stable-channel-update.html
    http://lists.apple.com/archives/security-announce/2013/Oct/msg00009.html
    http://lists.apple.com/archives/security-announce/2013/Sep/msg00006.html
    http://lists.opensuse.org/opensuse-security-announce/2012-12/msg00004.html
    http://lists.opensuse.org/opensuse-security-announce/2013-01/msg00023.html
    http://lists.opensuse.org/opensuse-security-announce/2013-11/msg00002.html
    http://rhn.redhat.com/errata/RHSA-2012-1512.html
    http://rhn.redhat.com/errata/RHSA-2013-0217.html
    http://secunia.com/advisories/51448
    http://secunia.com/advisories/54886
    http://secunia.com/advisories/55568
    http://support.apple.com/kb/HT5934
    http://support.apple.com/kb/HT6001
    http://www.debian.org/security/2012/dsa-2580
    http://www.mandriva.com/security/advisories?name=MDVSA-2013:056
    http://www.securityfocus.com/bid/56684
    http://www.securitytracker.com/id?1027815
    http://www.ubuntu.com/usn/USN-1656-1
    https://bugzilla.redhat.com/show_bug.cgi?id=880466
    https://code.google.com/p/chromium/issues/detail?id=158249
    https://exchange.xforce.ibmcloud.com/vulnerabilities/80294
    http://git.gnome.org/browse/libxml2/commit/?id=6a36fbe3b3e001a8a840b5c1fdd81cefc9947f0d
    http://googlechromereleases.blogspot.com/2012/11/stable-channel-update.html
    http://lists.apple.com/archives/security-announce/2013/Oct/msg00009.html
    http://lists.apple.com/archives/security-announce/2013/Sep/msg00006.html
    http://lists.opensuse.org/opensuse-security-announce/2012-12/msg00004.html
    http://lists.opensuse.org/opensuse-security-announce/2013-01/msg00023.html
    http://lists.opensuse.org/opensuse-security-announce/2013-11/msg00002.html
    http://rhn.redhat.com/errata/RHSA-2012-1512.html
    http://rhn.redhat.com/errata/RHSA-2013-0217.html
    http://secunia.com/advisories/51448
    http://secunia.com/advisories/54886
    http://secunia.com/advisories/55568
    http://support.apple.com/kb/HT5934
    http://support.apple.com/kb/HT6001
    http://www.debian.org/security/2012/dsa-2580
    http://www.mandriva.com/security/advisories?name=MDVSA-2013:056
    http://www.securityfocus.com/bid/56684
    http://www.securitytracker.com/id?1027815
    http://www.ubuntu.com/usn/USN-1656-1
    https://bugzilla.redhat.com/show_bug.cgi?id=880466
    https://code.google.com/p/chromium/issues/detail?id=158249
    https://exchange.xforce.ibmcloud.com/vulnerabilities/80294

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High