CVE-2023-4156

gawk: A heap out-of-bounds read flaw was found in builtin.c in the gawk package

CVE-2023-4156 is fixed in 6 products on 1 platform, first by gawk 1:4.1.4+dfsg-1ubuntu0.1~esm1, released August 7, 2023. It is not reported as exploited. Patch Radar priority: High.

High
CVSS
7.1
high
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0042
36th percentile

A heap out-of-bounds read flaw was found in builtin.c in the gawk package. This issue may lead to a crash and could be used to read sensitive information.

Where it's fixed

ProductFixed inFixReleased
Linux
gawk · Debian 12.15 (bookworm) 1:5.2.1-1 DEBIAN-CVE-2023-4156 Sep 25, 2023
gawk · Debian 13.5 (trixie) 1:5.2.1-1 DEBIAN-CVE-2023-4156 Sep 25, 2023
gawk · Debian 14 1:5.2.1-1 DEBIAN-CVE-2023-4156 Sep 25, 2023
gawk · Ubuntu 18.04.6 LTS (bionic) 1:4.1.4+dfsg-1ubuntu0.1~esm1 gawk 1:4.1.4+dfsg-1ubuntu0.1~esm1 Aug 7, 2023
gawk · Ubuntu 20.04 LTS (focal) 1:5.0.1+dfsg-1ubuntu0.1 gawk 1:5.0.1+dfsg-1ubuntu0.1 Aug 7, 2023
gawk · Ubuntu 22.04.1 LTS (jammy) 1:5.1.0-1ubuntu0.1 gawk 1:5.1.0-1ubuntu0.1 Aug 7, 2023
gawk · amzn 2023 5.1.0-3.amzn2023.0.3 ALAS2023-2023-292 Aug 17, 2023
gawk-all-langpacks · amzn 2023 5.1.0-3.amzn2023.0.3 ALAS2023-2023-292 Aug 17, 2023
gawk-debuginfo · amzn 2023 5.1.0-3.amzn2023.0.3 ALAS2023-2023-292 Aug 17, 2023
gawk-debugsource · amzn 2023 5.1.0-3.amzn2023.0.3 ALAS2023-2023-292 Aug 17, 2023
gawk-devel · amzn 2023 5.1.0-3.amzn2023.0.3 ALAS2023-2023-292 Aug 17, 2023
gawk-doc · amzn 2023 5.1.0-3.amzn2023.0.3 ALAS2023-2023-292 Aug 17, 2023

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