CVE-2019-7309 Affecting glibc package, versions <2.28-6
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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- published3 Feb 2019
- disclosed3 Feb 2019
Introduced: 3 Feb 2019
CVE-2019-7309 (opens in a new tab)How to fix?
Upgrade Debian:unstable glibc to version 2.28-6 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream glibc package and not the glibc package as distributed by Debian.
See How to fix? for Debian:unstable relevant fixed versions and status.
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
- 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
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2019-7309