Input validation error in libunwind - CVE-2015-3239
Published: August 26, 2015 / Updated: August 9, 2020
Vulnerability identifier: #VU40662
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2015-3239
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: LibTMCG
Affected software:
libunwind
libunwind
Detailed vulnerability description
The vulnerability allows a remote non-authenticated attacker to read and manipulate data.
Off-by-one error in the dwarf_to_unw_regnum function in include/dwarf_i.h in libunwind 1.1 allows local users to have unspecified impact via invalid dwarf opcodes.
How to mitigate CVE-2015-3239
Install update from vendor's website.
Sources
- http://git.savannah.gnu.org/cgit/libunwind.git/commit/?id=396b6c7ab737e2bff244d640601c436a26260ca1
- http://rhn.redhat.com/errata/RHSA-2015-1675.html
- http://rhn.redhat.com/errata/RHSA-2015-1768.html
- http://rhn.redhat.com/errata/RHSA-2015-1769.html
- http://www.securityfocus.com/bid/76707
- https://bugzilla.redhat.com/show_bug.cgi?id=1232265