Patch
CVE-2021-45261
MEDIUM
Vulnerability Assessment
| Weakness |
CWE
ASVS 5.0
V15 - Secure Coding and Architecture Pointer release safety
|
| Impact | CVSS score of 5.5 (MEDIUM). Attack characteristics: local attack vector, low complexity, no privileges required, user interaction required. Public proof-of-concept exploit code is available. |
| Exploit ScenarioDerived | Successful exploitation could compromise the medium-severity affected system. |
Get an e-mail when this CVE is exploited, patched or re-scored. Free account.
Alert meAnalysisAI
An Invalid Pointer vulnerability exists in GNU patch 2.7 via the another_hunk function, which causes a Denial of Service. Rated medium severity (CVSS 5.5), this vulnerability is no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
RemediationAI
No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.
Affects your stack
Find out whether the stacks and servers you run are on an affected version.
Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Technical ContextAI · show details
This vulnerability is classified under CWE-763. An Invalid Pointer vulnerability exists in GNU patch 2.7 via the another_hunk function, which causes a Denial of Service. Affected products include: Gnu Patch.
Know when Patch gets its next vulnerability
- Watch products and get an email when something new is published
- Check this CVE against your own stack and servers
- Exploit and PoC references, threat intelligence from 22 sources
No credit card · 7-day full trial
Severity by source
AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
DescriptionNVD
An Invalid Pointer vulnerability exists in GNU patch 2.7 via the another_hunk function, which causes a Denial of Service.
Threat Intelligence Overview
NVD
CVE.org
EPSS
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Denial of Service attacks render applications or systems unavailable by overwhelming resources or triggering failure conditions.
Affected Products (CPE)NVD
GNU patch 2.7.1 allows remote attackers to write to arbitrary files via a symlink attack in a patch file. Rated medium s
Directory traversal vulnerability in GNU patch versions which support Git-style patching before 2.7.3 allows remote atta
GNU patch through 2.7.6 is vulnerable to OS shell command injection that can be exploited by opening a crafted patch fil
GNU Patch version 2.7.6 contains an input validation vulnerability when processing patch files, specifically the EDITOR_
A double free exists in the another_hunk function in pch.c in GNU patch through 2.7.6. Rated high severity (CVSS 7.5), t
An issue was discovered in GNU patch through 2.7.6. Rated high severity (CVSS 7.5), this vulnerability is remotely explo
Tanium addressed an incorrect default permissions vulnerability in Patch. [CVSS 6.5 MEDIUM]
An authenticated SQL injection (CWE-89) in the Tanium Patch module lets a low-privilege user with valid console credenti
SQL injection in Tanium Patch allows authenticated low-privilege attackers to read, modify, or delete data from the back
In GNU patch through 2.7.6, the following of symlinks is mishandled in certain cases other than input files. Rated mediu
GNU patch 2.7.2 and earlier allows remote attackers to cause a denial of service (memory consumption and segmentation fa
GNU patch enters an infinite CPU-consuming loop when processing a specially crafted unified-diff file containing an exce
GitHub PoC
Exploit-DB