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CVE-2020-29562

Published: 4 December 2020

The iconv function in the GNU C Library (aka glibc or libc6) 2.30 to 2.32, when converting UCS4 text containing an irreversible character, fails an assertion in the code path and aborts the program, potentially resulting in a denial of service.

Notes

AuthorNote
mdeslaur
while bug reports indicate this was introduced in 2.30, there
actually is a commit in 2.27 to fix the issue.
Priority

Low

CVSS 3 base score: 4.8

Status

Package Release Status
eglibc
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

impish Does not exist

jammy Does not exist

precise Not vulnerable
(code not present)
trusty Not vulnerable
(code not present)
upstream Needs triage

xenial Does not exist

glibc
Launchpad, Ubuntu, Debian
bionic
Released (2.27-3ubuntu1.5)
focal
Released (2.31-0ubuntu9.7)
groovy Ignored
(reached end-of-life)
hirsute Not vulnerable
(2.33-0ubuntu1)
impish Not vulnerable
(2.33-0ubuntu1)
jammy Not vulnerable
(2.33-0ubuntu1)
precise Does not exist

trusty Does not exist

upstream Needs triage

xenial Not vulnerable
(code not present)
Patches:
upstream: https://sourceware.org/git/?p=glibc.git;h=228edd356f03bf62dcf2b1335f25d43c602ee68d
upstream: https://sourceware.org/git/?p=glibc.git;h=5fa7884e25c5d11718253244fd1bc570c60f4cc8 (2.27)