CVE-2016-9558
Description
(1) libdwarf/dwarf_leb.c and (2) dwarfdump/print_frames.c in libdwarf before 20161124 allow remote attackers to have unspecified impact via a crafted bit pattern in a signed leb number, aka a "negation overflow."
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2016-9558
Vendor advisory: cve@mitre.org — https://blogs.gentoo.org/ago/2016/11/19/libdwarf-negation-overflow-in-dwarf_leb-c/
Vendor advisory: cve@mitre.org — http://www.openwall.com/lists/oss-security/2016/11/23/3
Vendor advisory: cve@mitre.org — http://www.openwall.com/lists/oss-security/2016/11/19/6
Vendor advisory: arch — https://security.archlinux.org/ASA-201612-4
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| arch | fixed | 20161124-1 | |
| debian | bookworm | fixed | 20161124-1 |
| debian | bullseye | fixed | 20161124-1 |
| debian | forky | fixed | 20161124-1 |
| debian | sid | fixed | 20161124-1 |
| debian | trixie | fixed | 20161124-1 |
Application impact
| Vendor | Product | Versions | Fixed |
|---|---|---|---|
| libdwarf_project | libdwarf | {"startIncluding":"1999-12-14","endExcluding":"2016-11-24"} | 2016-11-24 |
References
- https://security.archlinux.org/ASA-201612-4
- http://www.openwall.com/lists/oss-security/2016/11/19/6
- http://www.openwall.com/lists/oss-security/2016/11/23/3
- http://www.securityfocus.com/bid/94491
- https://blogs.gentoo.org/ago/2016/11/19/libdwarf-negation-overflow-in-dwarf_leb-c/
- https://sourceforge.net/p/libdwarf/code/ci/4f19e1050cd8e9ddf2cb6caa061ff2fec4c9b5f9/#diff-5
- https://www.prevanders.net/dwarfbug.html
- https://security-tracker.debian.org/tracker/CVE-2016-9558
CWEs
CWE-190
Verify integrity in audit chain (admin only). AS-IS.