Buffer Overflow in Mercurial Affects Patch Data Processing
CVE-2018-13348

7.5HIGH

Key Information:

Vendor

Mercurial

Status
Mercurial
Vendor
CVE Published:
6 July 2018

What is CVE-2018-13348?

The mpatch_decode function in Mercurial prior to version 4.6.1 is vulnerable to a buffer overflow. This occurs when the function fails to ensure that a minimum of 12 bytes remain after the current patch data position, which may lead to unexpected behavior or exploitation by attackers. This flaw exemplifies the risks associated with inadequate handling of memory boundaries within software applications.

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References

https://www.mercurial-scm.org/repo/hg/rev/90a274965de7
x_refsource_MISC
https://www.mercurial-scm.org/wiki/WhatsNew#Mercurial_4.6...
x_refsource_MISC
https://lists.debian.org/debian-lts-announce/2020/07/msg0...
mailing-listx_refsource_MLIST

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
High
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

JSON
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