CVE-2019-17266 — libsoup from versions 2
libsoup from versions 2.65.1 until 2.68.1 have a heap-based buffer over-read because soup_ntlm_parse_challenge() in soup-auth-ntlm.c does not properly check an NTLM message's length before proceeding with a memcpy.
Published
2019-10-06T21:48:18.000Z
Last modified
2024-08-05T01:33:17.352Z
01What is this vulnerability?
libsoup from versions 2.65.1 until 2.68.1 have a heap-based buffer over-read because soup_ntlm_parse_challenge() in soup-auth-ntlm.c does not properly check an NTLM message's length before proceeding with a memcpy.
02Affected products
| Vendor | Product | Versions |
|---|
| n | a / n/a | n/a |
03Active exploitation status
Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.
04Recommended remediation
- Patch to a fixed version listed in the vendor advisory (see references below).
- Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
- Hunt historical logs for exploitation indicators — see Detection signatures below.
05Technical details
For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.
06Detection signatures
Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.
07Related CVEs
No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.
08Timeline
- Published: 2019-10-06T21:48:18.000Z
- Last modified: 2024-08-05T01:33:17.352Z
09References
- gitlab.gnome.org — https://gitlab.gnome.org/GNOME/libsoup/issues/173
- security-tracker.debian.org — https://security-tracker.debian.org/tracker/CVE-2019-17266
- gitlab.gnome.org — https://gitlab.gnome.org/GNOME/libsoup/commit/88b7dff4467f4151afae244ea7d1223753…
- github.com — https://github.com/Kirin-say/Vulnerabilities/blob/master/CVE-2019-17266_POC.md
- bugs.debian.org — https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=941912
- www.mail-archive.com — https://www.mail-archive.com/debian-bugs-dist%40lists.debian.org/msg1705054.html
- gitlab.gnome.org — https://gitlab.gnome.org/GNOME/libsoup/commit/f8a54ac85eec2008c85393f331cdd251af…
- usn.ubuntu.com — https://usn.ubuntu.com/4152-1/
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