Out-of-bounds Write Affecting gnulib package, versions <20140202stable-2deb8u1build0.18.04.1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UBUNTU1804-GNULIB-265126
- published3 Oct 2018
- disclosed3 Oct 2018
Introduced: 3 Oct 2018
CVE-2018-17942 (opens in a new tab)How to fix?
Upgrade Ubuntu:18.04 gnulib to version 20140202stable-2deb8u1build0.18.04.1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream gnulib package and not the gnulib package as distributed by Ubuntu.
See How to fix? for Ubuntu:18.04 relevant fixed versions and status.
The convert_to_decimal function in vasnprintf.c in Gnulib before 2018-09-23 has a heap-based buffer overflow because memory is not allocated for a trailing '\0' character during %f processing.
References
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2018-17942
- https://security-tracker.debian.org/tracker/CVE-2018-17942
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/A5UQRNQE6XHMD5UYYHAU3VQWAYHIPMQS/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TMGHTVYH3KAFN34QXNSGEQDSTV7MCOQW/
- https://github.com/coreutils/gnulib/commit/278b4175c9d7dd47c1a3071554aac02add3b3c35
- https://lists.gnu.org/archive/html/bug-gnulib/2018-09/msg00107.html
- https://savannah.gnu.org/bugs/?func=detailitem&item_id=54686
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/A5UQRNQE6XHMD5UYYHAU3VQWAYHIPMQS/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TMGHTVYH3KAFN34QXNSGEQDSTV7MCOQW/