CVE-2019-7309 The advisory has been revoked - it doesn't affect any version of package glibc (opens in a new tab)
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-UBUNTU1904-GLIBC-526520
- published3 Feb 2019
- disclosed3 Feb 2019
Introduced: 3 Feb 2019
CVE-2019-7309 (opens in a new tab)Amendment
The Ubuntu security team deemed this advisory irrelevant for Ubuntu:19.04.
NVD Description
Note: Versions mentioned in the description apply only to the upstream glibc package and not the glibc package as distributed by Ubuntu.
In the GNU C Library (aka glibc or libc6) through 2.29, the memcmp function for the x32 architecture can incorrectly return zero (indicating that the inputs are equal) because the RDX most significant bit is mishandled.
References
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2019-7309
- https://security-tracker.debian.org/tracker/CVE-2019-7309
- https://security.gentoo.org/glsa/202006-04
- https://sourceware.org/bugzilla/show_bug.cgi?id=24155
- https://sourceware.org/ml/libc-alpha/2019-02/msg00041.html
- http://www.securityfocus.com/bid/106835
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html