ADVISORIES

• CVE-2017-18258 (NVD)
• GHSA-882p-jqgm-f45g
• Vendor Advisory

GEM

nokogiri

SEVERITY

CVSS v3.x: 6.5 (Medium)

PATCHED VERSIONS

• >= 1.8.2

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.

References:

• https://nvd.nist.gov/vuln/detail/CVE-2017-18258
• https://git.gnome.org/browse/libxml2/commit/?id=e2a9122b8dde53d320750451e9907a7dcb2ca8bb
• https://github.com/advisories/GHSA-882p-jqgm-f45g
• https://kc.mcafee.com/corporate/index?page=content&id=SB10284
• https://lists.debian.org/debian-lts-announce/2018/09/msg00035.html
• https://lists.debian.org/debian-lts-announce/2020/09/msg00009.html
• https://security.netapp.com/advisory/ntap-20190719-0001/
• https://usn.ubuntu.com/3739-1/