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Debian Security Advisory DSA 3963-1 (mercurial - security update)

Information

Severity

Severity

Critical

Family

Family

Debian Local Security Checks

CVSSv2 Base

CVSSv2 Base

10.0

CVSSv2 Vector

CVSSv2 Vector

AV:N/AC:L/Au:N/C:C/I:C/A:C

Solution Type

Solution Type

Vendor Patch

Created

Created

6 years ago

Modified

Modified

2 years ago

Summary

Several issues were discovered in Mercurial, a distributed revision control system. CVE-2017-9462 (fixed in stretch only) Jonathan Claudius of Mozilla discovered that repositories served over stdio could be tricked into granting authorized users access to the Python debugger. CVE-2017-1000115 Mercurial's symlink auditing was incomplete, and could be abused to write files outside the repository. CVE-2017-1000116 Joern Schneeweisz discovered that Mercurial did not correctly handle maliciously constructed ssh:// URLs. This allowed an attacker to run an arbitrary shell command.

Affected Software

Affected Software

mercurial on Debian Linux

Detection Method

Detection Method

This check tests the installed software version using the apt package manager.

Solution

Solution

For the oldstable distribution (jessie), these problems have been fixed in version 3.1.2-2+deb8u4. For the stable distribution (stretch), these problems have been fixed in version 4.0-1+deb9u1. We recommend that you upgrade your mercurial packages.

Common Vulnerabilities and Exposures (CVE)