CVE-2017-18258
MEDIUM6.5EPSS 0.90%libxml2 - security update
Published: 4/13/2018Modified: 4/28/2026
Description
The xz_head function in xzlib.c in libxml2 before 2.9.6 allows remote attackers to cause a denial of service (memory consumption) via a crafted LZMA file, because the decoder functionality does not restrict memory usage to what is required for a legitimate file.
Affected packages (4)
- Debian/libxml2from 0, < 2.9.10+dfsg-2
- Debian/libxml2from 0, < 2.9.1+dfsg1-5+deb8u7
- Debian/libxml2from 0, < 2.9.4+dfsg1-2.2+deb9u3
- RubyGems/nokogirifrom 0, < 1.8.2
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.5 | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |
References (10)
- ADVISORYhttps://github.com/advisories/GHSA-882p-jqgm-f45g
- ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2017-18258
- ADVISORYhttps://security-tracker.debian.org/tracker/CVE-2017-18258
- WEBhttps://git.gnome.org/browse/libxml2/commit/?id=e2a9122b8dde53d320750451e9907a7dcb2ca8bb
- WEBhttps://github.com/rubysec/ruby-advisory-db/blob/master/gems/nokogiri/CVE-2017-18258.yml
- WEBhttps://kc.mcafee.com/corporate/index?page=content&id=SB10284
- WEBhttps://lists.debian.org/debian-lts-announce/2018/09/msg00035.html
- WEBhttps://lists.debian.org/debian-lts-announce/2020/09/msg00009.html
- WEBhttps://security.netapp.com/advisory/ntap-20190719-0001
- WEBhttps://usn.ubuntu.com/3739-1