Security Information / 2019 / Security Information -- DSA-4581-1 git

Debian Security Advisory

DSA-4581-1 git -- security update

Date Reported:

10 Dec 2019

Affected Packages:

git

Vulnerable:

Yes

Security database references:

In Mitre's CVE dictionary: CVE-2019-1348, CVE-2019-1349, CVE-2019-1352, CVE-2019-1353, CVE-2019-1387, CVE-2019-19604.

More information:

Several vulnerabilities have been discovered in git, a fast, scalable, distributed revision control system.

• CVE-2019-1348

  It was reported that the --export-marks option of git fast-import is exposed also via the in-stream command feature export-marks=..., allowing to overwrite arbitrary paths.

• CVE-2019-1387

  It was discovered that submodule names are not validated strictly enough, allowing very targeted attacks via remote code execution when performing recursive clones.

• CVE-2019-19604

  Joern Schneeweisz reported a vulnerability, where a recursive clone followed by a submodule update could execute code contained within the repository without the user explicitly having asked for that. It is now disallowed for `.gitmodules` to have entries that set `submodule.<name>.update=!command`.

In addition this update addresses a number of security issues which are only an issue if git is operating on an NTFS filesystem (CVE-2019-1349, CVE-2019-1352 and CVE-2019-1353).

For the oldstable distribution (stretch), these problems have been fixed in version 1:2.11.0-3+deb9u5.

For the stable distribution (buster), these problems have been fixed in version 1:2.20.1-2+deb10u1.

We recommend that you upgrade your git packages.

For the detailed security status of git please refer to its security tracker page at: https://security-tracker.debian.org/tracker/git