CVE-2018-16890

NameCVE-2018-16890
Descriptionlibcurl versions from 7.36.0 to before 7.64.0 is vulnerable to a heap buffer out-of-bounds read. The function handling incoming NTLM type-2 messages (`lib/vauth/ntlm.c:ntlm_decode_type2_target`) does not validate incoming data correctly and is subject to an integer overflow vulnerability. Using that overflow, a malicious or broken NTLM server could trick libcurl to accept a bad length + offset combination that would lead to a buffer read out-of-bounds.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
ReferencesDLA-1672-1, DSA-4386-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
curl (PTS)jessie, jessie (lts)7.38.0-4+deb8u28fixed
stretch (security)7.52.1-5+deb9u16fixed
stretch (lts), stretch7.52.1-5+deb9u22fixed
buster, buster (lts)7.64.0-4+deb10u10fixed
buster (security)7.64.0-4+deb10u9fixed
bullseye7.74.0-1.3+deb11u13fixed
bullseye (security)7.74.0-1.3+deb11u14fixed
bookworm7.88.1-10+deb12u8fixed
bookworm (security)7.88.1-10+deb12u5fixed
sid, trixie8.11.1-1fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
curlsourcewheezy(not affected)
curlsourcejessie7.38.0-4+deb8u14DLA-1672-1
curlsourcestretch7.52.1-5+deb9u9DSA-4386-1
curlsource(unstable)7.64.0-1

Notes

https://curl.haxx.se/docs/CVE-2018-16890.html
Fixed by: https://github.com/curl/curl/commit/b780b30d1377adb10bbe774835f49e9b237fb9bb
Introduced by: https://github.com/curl/curl/commit/86724581b6c02d160b52f817550cfdfc9c93af62
[wheezy] - curl <not-affected> (Vulnerabe code not present)

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