Out-of-bounds read in lighttpd - CVE-2013-7205
Published: January 15, 2014 / Updated: August 8, 2022
Vulnerability identifier: #VU32582
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2013-7205
CWE-ID: CWE-125
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: lighttpd
Affected software:
lighttpd
lighttpd
Detailed vulnerability description
The vulnerability allows a remote attacker to perform denial of service (DoS) attack.
The vulnerability exists due to a boundary condition when processing a long string in the last key value in the variable list, which triggers a heap-based buffer over-read within the Off-by-one error in the process_cgivars function in contrib/daemonchk.c. A remote attacker can create a specially crafted file, pass it to the application, trigger out-of-bounds read error and crash the affected application.
How to mitigate CVE-2013-7205
Install update from vendor's website.
Sources
- http://secunia.com/advisories/55976
- http://sourceforge.net/p/nagios/nagioscore/ci/d97e03f32741a7d851826b03ed73ff4c9612a866/
- http://www.mandriva.com/security/advisories?name=MDVSA-2014:004
- http://www.openwall.com/lists/oss-security/2013/12/24/1
- http://www.securityfocus.com/bid/64489
- https://lists.debian.org/debian-lts-announce/2018/12/msg00014.html