Bug 1829397 (CVE-2020-12278) - CVE-2020-12278 libgit2: files inside the .git directory may be overwritten during cloning via NTFS Alternate Data Streams
Summary: CVE-2020-12278 libgit2: files inside the .git directory may be overwritten du...
Keywords:
Status: CLOSED WONTFIX
Alias: CVE-2020-12278
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1829422 1829424 1829426 1829428 1829431 1829434 1829435
Blocks: 1829386
TreeView+ depends on / blocked
 
Reported: 2020-04-29 13:53 UTC by Riccardo Schirone
Modified: 2021-10-28 09:48 UTC (History)
5 users (show)

Fixed In Version: libgit2 0.28.4, libgit2 0.99.0
Clone Of:
Environment:
Last Closed: 2021-10-28 09:48:08 UTC
Embargoed:

Attachments (Terms of Use)

Description Riccardo Schirone 2020-04-29 13:53:49 UTC 
An issue was discovered in libgit2 where path.c mishandles equivalent filenames that exist because of NTFS Alternate Data Streams. This may allow remote code execution when cloning a repository. This issue is the libgit2 variant of CVE-2019-1352.

References:
https://github.com/git/git/security/advisories/GHSA-5wph-8frv-58vj
https://github.com/libgit2/libgit2/commit/3f7851eadca36a99627ad78cbe56a40d3776ed01
https://github.com/libgit2/libgit2/commit/e1832eb20a7089f6383cfce474f213157f5300cb
https://github.com/libgit2/libgit2/releases/tag/v0.28.4
https://github.com/libgit2/libgit2/releases/tag/v0.99.0
Comment 1 Riccardo Schirone 2020-04-29 14:16:03 UTC 
Statement:

Even if the code in the versions of libgit2 as shipped with Red Hat Enterprise Linux 7, and 8 are affected by this flaw, Red Hat does not support the NTFS filesystem. For this reason, the flaw has a Low Impact.
Comment 2 Riccardo Schirone 2020-04-29 14:24:31 UTC 
Created libgit2 tracking bugs for this issue:

Affects: epel-all [bug 1829422]
Affects: fedora-all [bug 1829424]


Created libgit2:0.26/libgit2 tracking bugs for this issue:

Affects: fedora-all [bug 1829426]


Created libgit2:0.27/libgit2 tracking bugs for this issue:

Affects: fedora-all [bug 1829428]


Created libgit2:0.28/libgit2 tracking bugs for this issue:

Affects: fedora-all [bug 1829431]
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