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    CVE-2013-0242

    Buffer overflow in the extend_buffers function in the regular expression matcher (posix/regexec.c) in glibc, possibly 2.17 and earlier, allows context-dependent attackers to cause a denial of service (memory corruption and crash) via crafted multibyte characters.

    Published:Jan 29, 2013
    Last Modified:Apr 11, 2025
    EPS:Feb 8, 2013
    EPSS Score:0.02704
    CVSS Score:5

    Affected Products

    Vendor
    Gnu
    Product
    Glibc
    Vendor
    Redhat
    Product
    Enterprise Linux

    Exploits

    No exploit reference

    Related CVEs

    CVE-2026-80489 (CVSS 5.9) — A flaw was found in glibc. This vulnerability allows a remote attacker to cause a denial of service (DoS) by p…
    CVE-2026-77117 (CVSS 5.9) — A flaw was found in glibc. A remote attacker could exploit this vulnerability by providing specially crafted i…
    CVE-2026-19499 (CVSS 6.8) — A flaw was found in glibc. The strfmon and strfmon_l functions are vulnerable to a buffer overflow when proces…
    CVE-2026-19542 (CVSS 4.2) — A flaw was found in glibc. An out-of-bounds array write vulnerability exists within the `tdelete` function. Th…
    CVE-2026-6368 (CVSS 2.1) — Calling wordexp with WRDE_APPEND in the GNU C Library version 2.0 to version 2.43 can cause the interface to r…
    CVE-2026-6238 (CVSS 6.5) — The deprecated functions ns_printrrf, ns_printrr and fp_nquery in the GNU C Library version 2.0.1 to version 2…
    CVE-2026-5435 (CVSS 7.3) — The deprecated functions ns_printrrf, ns_printrr and fp_nquery in the GNU C Library version 2.2 and newer fail…
    CVE-2026-5450 (CVSS 9.8) — Calling the scanf family of functions with a %mc (malloc'd character match) in the GNU C Library version 2.7 t…
    CVE-2026-5928 (CVSS 7.5) — Calling the ungetwc function on a FILE stream with wide characters encoded in a character set that has overlap…
    CVE-2026-4046 (CVSS 7.5) — The iconv() function in the GNU C Library versions 2.43 and earlier may crash due to an assertion failure when…

    References

    http://osvdb.org/89747
    http://rhn.redhat.com/errata/RHSA-2013-0769.html
    http://rhn.redhat.com/errata/RHSA-2013-1605.html
    http://secunia.com/advisories/51951
    http://secunia.com/advisories/55113
    http://sourceware.org/bugzilla/show_bug.cgi?id=15078
    http://sourceware.org/ml/libc-alpha/2013-01/msg00967.html
    http://www.mandriva.com/security/advisories?name=MDVSA-2013:163
    http://www.openwall.com/lists/oss-security/2013/01/30/5
    http://www.securityfocus.com/bid/57638
    http://www.securitytracker.com/id/1028063
    http://www.ubuntu.com/usn/USN-1991-1
    http://www.vmware.com/security/advisories/VMSA-2014-0008.html
    https://exchange.xforce.ibmcloud.com/vulnerabilities/81707
    https://security.gentoo.org/glsa/201503-04
    http://osvdb.org/89747
    http://rhn.redhat.com/errata/RHSA-2013-0769.html
    http://rhn.redhat.com/errata/RHSA-2013-1605.html
    http://secunia.com/advisories/51951
    http://secunia.com/advisories/55113
    http://sourceware.org/bugzilla/show_bug.cgi?id=15078
    http://sourceware.org/ml/libc-alpha/2013-01/msg00967.html
    http://www.mandriva.com/security/advisories?name=MDVSA-2013:163
    http://www.openwall.com/lists/oss-security/2013/01/30/5
    http://www.securityfocus.com/bid/57638
    http://www.securitytracker.com/id/1028063
    http://www.ubuntu.com/usn/USN-1991-1
    http://www.vmware.com/security/advisories/VMSA-2014-0008.html
    https://exchange.xforce.ibmcloud.com/vulnerabilities/81707
    https://security.gentoo.org/glsa/201503-04

    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