CVE-2022-3515

high

Published 2022-10-24 · Modified 2022-10-24

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CVSS v3

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CVSS v4 NEW

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not yet in upstream

VIR risk

8.0

Description

A vulnerability was found in the Libksba library due to an integer overflow within the CRL parser. The vulnerability can be exploited remotely for code execution on the target system by passing specially crafted data to the application, for example, a malicious S/MIME attachment.

Predictions

Exploit likelihood

20%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

Mitigation details

Source: Red Hat Errata — Red Hat Inc. · View original ↗ · Open-Errata-API

Description libksba: integer overflow may lead to remote code execution CVSS v3: 8.6 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H) Errata / fixed releases ProductPackageAdvisoryReleased Red Hat Enterprise Linux 7libksba-0:1.3.0-6.el7_9RHSA-2022:70882022-10-24T00:00:00Z Red Hat Enterprise Linux 8libksba-0:1.3.5-8.el8_6RHSA-2022:70892022-10-24T00:00:00Z Red Hat Enterprise Linux 8.1 Update Services…

Description

libksba: integer overflow may lead to remote code execution

CVSS v3: 8.6 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H)

Errata / fixed releases

Product	Package	Advisory	Released
Red Hat Enterprise Linux 7	`libksba-0:1.3.0-6.el7_9`	RHSA-2022:7088	2022-10-24T00:00:00Z
Red Hat Enterprise Linux 8	`libksba-0:1.3.5-8.el8_6`	RHSA-2022:7089	2022-10-24T00:00:00Z
Red Hat Enterprise Linux 8.1 Update Services for SAP Solutions	`libksba-0:1.3.5-8.el8_1`	RHSA-2022:7209	2022-10-26T00:00:00Z
Red Hat Enterprise Linux 8.2 Advanced Update Support	`libksba-0:1.3.5-8.el8_2`	RHSA-2022:7283	2022-11-01T00:00:00Z
Red Hat Enterprise Linux 8.2 Telecommunications Update Service	`libksba-0:1.3.5-8.el8_2`	RHSA-2022:7283	2022-11-01T00:00:00Z
Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions	`libksba-0:1.3.5-8.el8_2`	RHSA-2022:7283	2022-11-01T00:00:00Z
Red Hat Enterprise Linux 8.4 Extended Update Support	`libksba-0:1.3.5-8.el8_4`	RHSA-2022:7927	2022-11-14T00:00:00Z
Red Hat Enterprise Linux 9	`libksba-0:1.5.1-5.el9_0`	RHSA-2022:7090	2022-10-24T00:00:00Z
Red Hat Virtualization 4 for Red Hat Enterprise Linux 8	`redhat-virtualization-host-0:4.5.3-202211170828_8.6`	RHSA-2022:8598	2022-11-22T00:00:00Z

Package state

Product	Package	State
Red Hat Enterprise Linux 6	`libksba`	Out of support scope

Apply commands

bash fix

Apply RHSA-2022:7088 for Red Hat Enterprise Linux 7

yum update -y libksba
# or:
dnf upgrade -y libksba

OS impact

SUSE Affected 1 release

Version	Status	Fixed in
—	Affected	—

Arch Fixed 1 release

Version	Status	Fixed in
—	Fixed	`1.6.3-1`

Debian Fixed 5 releases

Version	Status	Fixed in
trixie	Fixed	`1.6.2-1`
sid	Fixed	`1.6.2-1`
forky	Fixed	`1.6.2-1`
bullseye	Fixed	`1.5.0-3+deb11u1`
bookworm	Fixed	`1.6.2-1`

Red Hat Fixed 2 releases

Version	Status	Fixed in
9	Fixed	—
8	Fixed	—

Rocky Linux Fixed 2 releases

Version	Status	Fixed in
9	Fixed	—
8	Fixed	—

References

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.