CVE-2017-17440 — GNU Libextractor 1
GNU Libextractor 1.6 allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via a crafted GIF, IT (Impulse Tracker), NSFE, S3M (Scream Tracker 3), SID, or XM (eXtended Module) file, as demonstrated by the EXTRACTOR_xm_extract_method
Published
2017-12-06T17:29:00.220
Last modified
2026-05-13T00:24:29.033
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
01What is this vulnerability?
GNU Libextractor 1.6 allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via a crafted GIF, IT (Impulse Tracker), NSFE, S3M (Scream Tracker 3), SID, or XM (eXtended Module) file, as demonstrated by the EXTRACTOR_xm_extract_method function in plugins/xm_extractor.c.
02Affected products
No structured affected-product list available — see references below for vendor advisories.
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: 2017-12-06T17:29:00.220
- Last modified: 2026-05-13T00:24:29.033
09References
- www.securityfocus.com — http://www.securityfocus.com/bid/102116
- bugs.debian.org — https://bugs.debian.org/883528#35
- gnunet.org — https://gnunet.org/git/libextractor.git/commit/?id=7cc63b001ceaf81143795321379c8…
- lists.gnu.org — https://lists.gnu.org/archive/html/bug-libextractor/2017-11/msg00000.html
- lists.gnu.org — https://lists.gnu.org/archive/html/bug-libextractor/2017-11/msg00001.html
- lists.gnu.org — https://lists.gnu.org/archive/html/bug-libextractor/2017-11/msg00002.html
- lists.gnu.org — https://lists.gnu.org/archive/html/bug-libextractor/2017-11/msg00004.html
- lists.gnu.org — https://lists.gnu.org/archive/html/bug-libextractor/2017-11/msg00005.html
- www.securityfocus.com — http://www.securityfocus.com/bid/102116
- bugs.debian.org — https://bugs.debian.org/883528#35
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