Mercurial
CVE-2018-17983
CRITICAL
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Lifecycle Timeline
1DescriptionNVD
cext/manifest.c in Mercurial before 4.7.2 has an out-of-bounds read during parsing of a malformed manifest entry.
AnalysisAI
cext/manifest.c in Mercurial before 4.7.2 has an out-of-bounds read during parsing of a malformed manifest entry. Rated critical severity (CVSS 9.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity.
Technical ContextAI
This vulnerability is classified as Out-of-bounds Read (CWE-125), which allows attackers to read data from memory outside the intended buffer boundaries. cext/manifest.c in Mercurial before 4.7.2 has an out-of-bounds read during parsing of a malformed manifest entry. Affected products include: Mercurial. Version information: before 4.7.2.
RemediationAI
A vendor patch is available. Apply the latest security update as soon as possible. Validate array indices and buffer lengths. Use memory-safe languages. Enable AddressSanitizer during testing.
In Mercurial before 4.1.3, "hg serve --stdio" allows remote authenticated users to launch the Python debugger, and conse
In Mercurial before 4.4.1, it is possible that a specially malformed repository can cause Git subrepositories to run arb
The _validaterepo function in sshpeer in Mercurial before 3.2.4 allows remote attackers to execute arbitrary commands vi
Mercurial prior to 4.3 did not adequately sanitize hostnames passed to ssh, leading to possible shell-injection attacks.
The binary delta decoder in Mercurial before 3.7.3 allows remote attackers to execute arbitrary code via a (1) clone, (2
Mercurial before 3.7.3 allows remote attackers to execute arbitrary code via a crafted git ext:: URL when cloning a subr
mpatch.c in Mercurial before 4.6.1 mishandles integer addition and subtraction, aka OVE-20180430-0002. Rated critical se
Mercurial before 3.7.3 allows remote attackers to execute arbitrary code via a crafted name when converting a Git reposi
Mercurial version 4.5 and earlier contains a Incorrect Access Control (CWE-285) vulnerability in Protocol server that ca
The convert extension in Mercurial before 3.8 might allow context-dependent attackers to execute arbitrary code via a cr
Mercurial prior to version 4.3 is vulnerable to a missing symlink check that can malicious repositories to modify files
Jenkins Mercurial Plugin 2.16 and earlier allows attackers able to configure pipelines to check out some SCM repositorie
Same weakness CWE-125 – Out-of-bounds Read
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External POC / Exploit Code
Leaving vuln.today