CVE-2020-1751

Published: 17 April 2020

An out-of-bounds write vulnerability was found in glibc before 2.31 when handling signal trampolines on PowerPC. Specifically, the backtrace function did not properly check the array bounds when storing the frame address, resulting in a denial of service or potential code execution. The highest threat from this vulnerability is to system availability.

Priority

Medium

CVSS 3 base score: 7.0

Status

Package Release Status
eglibc
Launchpad, Ubuntu, Debian
Upstream Needs triage

Ubuntu 20.10 (Groovy Gorilla) Does not exist

Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

Ubuntu 16.04 LTS (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Ignored
(out of support)
glibc
Launchpad, Ubuntu, Debian
Upstream Needs triage

Ubuntu 20.10 (Groovy Gorilla) Not vulnerable
(2.31-0ubuntu9)
Ubuntu 20.04 LTS (Focal Fossa) Not vulnerable
(2.31-0ubuntu9)
Ubuntu 18.04 LTS (Bionic Beaver)
Released (2.27-3ubuntu1.2)
Ubuntu 16.04 LTS (Xenial Xerus)
Released (2.23-0ubuntu11.2)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

Patches:
Upstream: https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=d93769405996dfc11d216ddbe415946617b5a494

Notes

AuthorNote
leosilva
-esm releases only supports amd64 arch
mdeslaur
introduced in https://sourceware.org/git/?p=glibc.git;a=commit;h=d400dcac5e

References

Bugs