5.5

CVE-2019-20633: gnu patch Double Free

CVSS: 5.5v3.1MediumModified
AliasesALPINE-CVE-2019-20633SUSE-SU-2024:2704-1SUSE-SU-2024:2780-1
Published 25-03-2020Last modified 05-08-2024
Open JSON

Vulnerability summary

CVE-2019-20633 is a medium (CVSS 5.5) Double Free vulnerability in gnu patch. EPSS estimates a 1.02% chance of exploitation in the next 30 days, higher than 62.9% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
32/100
0100
Medium · default modelHow is this calculated?
CVSS score
5.5/10
010
Medium · v3.1 (NVD)
EPSS score
1.02%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference

Advisory lineage

Upstream 0 · Downstream 0 · Related 2
CGA-WQJ6-WQFH-55G3CGA-X3GF-54PW-XF6F

Timeline

  1. 25-03-2020
    PublishedVulnerability first disclosed.
  2. 05-08-2024
    Last modifiedVulnerability information updated.

Description

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.

CVSS metrics

6 scores · 5 sources · 2 versions

EPSS trend

Probability

1.02%

Chance of exploitation in the next 30 days

Percentile

63%

Versus all other CVEs

30-day change

0.00 pp

From 1.02% on 19-09-2026

19-09-202619-10-2026
EPSS score
1.02%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • referenceUnverified

    Exploit Reference (savannah.gnu.org)

    Maturity: unknown

Weaknesses

CWE · root cause

Affected systems

Suse5 products
  • patch&distro=SUSE Linux Enterprise Module for Basesystem 15 SP5< 2.7.6-150000.5.6.1
  • patch&distro=SUSE Linux Enterprise Module for Basesystem 15 SP6< 2.7.6-150000.5.6.1
  • patch&distro=SUSE Linux Enterprise Server 12 SP5< 2.7.5-8.11.1
  • patch&distro=SUSE Linux Enterprise Server for SAP Applications 12 SP5< 2.7.5-8.11.1
  • patch&distro=SUSE Linux Micro 6.0< 2.7.6-3.1
Opensuse3 products
  • patch&distro=openSUSE Leap 15.5< 2.7.6-150000.5.6.1
  • patch&distro=openSUSE Leap 15.6< 2.7.6-150000.5.6.1
  • patch&distro=openSUSE Tumbleweed< 2.7.6-8.1
Alpine1 product
  • patch< 2.7.6-r7
Chainguard1 product
  • patch< 2.7.6-r3
Gnu1 product
Ubuntu1 product
  • patchAll versions (No fix recorded)
Wolfi1 product
  • patch< 2.7.6-r3

7 vendors · 13 products

References

10 links