CVE-2019-20633

GNU patch through 2.7.6 contains a free(p_line[p_end]) Double Free vulnerability in the function another_hunk in pch.c that can cause a denial of service via a crafted patch file. NOTE: this issue exists because of an incomplete fix for CVE-2018-6952.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
5.5 MEDIUM
LOCAL
LOW
NONE
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
mitreCNA
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 34%
VendorProductVersion
gnupatch
𝑥
≤ 2.7.6
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
patch
sid
2.7.6-7
fixed
trixie
2.7.6-7
fixed
bookworm
2.7.6-7
fixed
bullseye
2.7.6-7
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
patch
noble
needs-triage
mantic
ignored
lunar
ignored
kinetic
ignored
jammy
needs-triage
impish
ignored
hirsute
ignored
groovy
ignored
focal
needs-triage
eoan
ignored
bionic
needs-triage
xenial
needs-triage
trusty
needs-triage
Common Weakness Enumeration
References
https://savannah.gnu.org/bugs/index.php?56683
https://savannah.gnu.org/bugs/index.php?56683