CVE-2018-9251 The xz_decomp function in xzlib.c in libxml2 2.9.8, if --with-lzma is used, allows remote attackers to cause a denial of service (infinite loop) via a crafted XML file that triggers LZMA_MEMLIMIT_ERRO...
MediumCVSS 5.3
EPSS 2.4%
- Published
- Updated
- Exploit status
- No public exploit known
Description
The xz_decomp function in xzlib.c in libxml2 2.9.8, if --with-lzma is used, allows remote attackers to cause a denial of service (infinite loop) via a crafted XML file that triggers LZMA_MEMLIMIT_ERROR, as demonstrated by xmllint, a different vulnerability than CVE-2015-8035.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| xmlsoft libxml2 | = 2.9.8 | No fix listed |
| debian linux | = 8.0 | No fix listed |
| alpine/libxml2(Alpine:v3.10) | < 2.9.8-r1 | 2.9.8-r1 |
| alpine/libxml2(Alpine:v3.11) | < 2.9.8-r1 | 2.9.8-r1 |
| alpine/libxml2(Alpine:v3.12) | < 2.9.8-r1 | 2.9.8-r1 |
| alpine/libxml2(Alpine:v3.13) | < 2.9.8-r1 | 2.9.8-r1 |
| alpine/libxml2(Alpine:v3.14) | < 2.9.8-r1 | 2.9.8-r1 |
| alpine/libxml2(Alpine:v3.15) | < 2.9.8-r1 | 2.9.8-r1 |
| alpine/libxml2(Alpine:v3.16) | < 2.9.8-r1 | 2.9.8-r1 |
| alpine/libxml2(Alpine:v3.17) | < 2.9.8-r1 | 2.9.8-r1 |
| alpine/libxml2(Alpine:v3.18) | < 2.9.8-r1 | 2.9.8-r1 |
| alpine/libxml2(Alpine:v3.19) | < 2.9.8-r1 | 2.9.8-r1 |
| alpine/libxml2(Alpine:v3.20) | < 2.9.8-r1 | 2.9.8-r1 |
| alpine/libxml2(Alpine:v3.21) | < 2.9.8-r1 | 2.9.8-r1 |
| alpine/libxml2(Alpine:v3.22) | < 2.9.8-r1 | 2.9.8-r1 |
| alpine/libxml2(Alpine:v3.23) | < 2.9.8-r1 | 2.9.8-r1 |
| alpine/libxml2(Alpine:v3.24) | < 2.9.8-r1 | 2.9.8-r1 |
| alpine/libxml2(Alpine:v3.5) | < 2.9.8-r1 | 2.9.8-r1 |
| alpine/libxml2(Alpine:v3.6) | < 2.9.8-r1 | 2.9.8-r1 |
| alpine/libxml2(Alpine:v3.7) | < 2.9.8-r1 | 2.9.8-r1 |
| alpine/libxml2(Alpine:v3.8) | < 2.9.8-r1 | 2.9.8-r1 |
| alpine/libxml2(Alpine:v3.9) | < 2.9.8-r1 | 2.9.8-r1 |
References
- bugzilla.gnome.org exploit issue-tracking third-party-advisory
- [debian-lts-announce] 20180927 [SECURITY] [DLA 1524-1] libxml2 security update mailing-list third-party-advisory
- security.alpinelinux.org vendor-advisory
- Debian Security Tracker CVE-2018-9251 vendor-advisory