857828 – (CVE-2022-2211) <app-emulation/libguestfs-1.48.4: DoS via buffer overflow in get_keys() function

Bug 857828 (CVE-2022-2211) - <app-emulation/libguestfs-1.48.4: DoS via buffer overflow in get_keys() function

Summary: <app-emulation/libguestfs-1.48.4: DoS via buffer overflow in get_keys() function

Status:	IN_PROGRESS

Alias:	CVE-2022-2211

Product:	Gentoo Security
Classification:	Unclassified
Component:	Vulnerabilities (show other bugs)
Hardware:	All Linux

Importance:	Normal trivial (vote)
Assignee:	Gentoo Security

URL:	https://bugzilla.redhat.com/show_bug....
Whiteboard:	~3 [noglsa cleanup]
Keywords:

Depends on:
Blocks:

Reported:	2022-07-13 02:14 UTC by John Helmert III
Modified:	2022-07-13 04:34 UTC (History)
CC List:	1 user (show)

See Also:
Package list:
Runtime testing required:	---

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Description John Helmert III archtester

2022-07-13 02:14:32 UTC

CVE-2022-2211 (https://access.redhat.com/security/cve/CVE-2022-2211):

A vulnerability was found in libguestfs. This issue occurs while calculating the greatest possible number of matching keys in the get_keys() function. This flaw leads to a denial of service, either by mistake or malicious actor.

Patch seems to be upstream as 99844660b48ed809e37378262c65d63df6ce4a53
which is in 1.49.3.

Comment 1 Larry the Git Cow gentoo-dev

2022-07-13 04:32:06 UTC

The bug has been referenced in the following commit(s):

https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=fe5234f80e05e2beb1564f6b982701084e6ea16b

commit fe5234f80e05e2beb1564f6b982701084e6ea16b
Author:     Sam James <sam@gentoo.org>
AuthorDate: 2022-07-13 04:29:57 +0000
Commit:     Sam James <sam@gentoo.org>
CommitDate: 2022-07-13 04:31:57 +0000

    app-emulation/libguestfs: add 1.48.4
    
    Bug: https://bugs.gentoo.org/857828
    Signed-off-by: Sam James <sam@gentoo.org>

 app-emulation/libguestfs/Manifest                 |   1 +
 app-emulation/libguestfs/libguestfs-1.48.4.ebuild | 240 ++++++++++++++++++++++
 2 files changed, 241 insertions(+)

Comment 2 Sam James archtester

2022-07-13 04:34:36 UTC

Yeah, indeed fixed in this version too: https://github.com/libguestfs/libguestfs/commits/stable-1.48