CVE-2018-19492 — An issue was discovered in cairo
An issue was discovered in cairo.trm in Gnuplot 5.2.5. This issue allows an attacker to conduct a buffer overflow with an arbitrary amount of data in the cairotrm_options function. This flaw is caused by a missing size check of an argument passed to the "set font" funct
Published
2018-11-23T17:00:00.000Z
Last modified
2024-08-05T11:37:11.491Z
01What is this vulnerability?
An issue was discovered in cairo.trm in Gnuplot 5.2.5. This issue allows an attacker to conduct a buffer overflow with an arbitrary amount of data in the cairotrm_options function. This flaw is caused by a missing size check of an argument passed to the "set font" function. This issue occurs when the Gnuplot pngcairo terminal is used as a backend.
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: 2018-11-23T17:00:00.000Z
- Last modified: 2024-08-05T11:37:11.491Z
09References
- sourceforge.net — https://sourceforge.net/p/gnuplot/gnuplot-main/ci/d5020716834582b20a5e12cdd49f39…
- lists.debian.org — https://lists.debian.org/debian-lts-announce/2018/11/msg00035.html
- sourceforge.net — https://sourceforge.net/p/gnuplot/bugs/2089/
- lists.debian.org — https://lists.debian.org/debian-lts-announce/2018/11/msg00031.html
- lists.opensuse.org — http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00066.html
- usn.ubuntu.com — https://usn.ubuntu.com/4541-1/
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