systemd 250/251 shared/elf-util.c parse_elf_object deadlock

CVSS Meta Temp Score
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CTI Interest Score
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4.3$0-$5k0.00

Summaryinfo

A vulnerability categorized as problematic has been discovered in systemd 250/251. This issue affects the function parse_elf_object of the file shared/elf-util.c. Executing a manipulation can lead to deadlock. This vulnerability is handled as CVE-2022-45873. It is possible to launch the attack on the local host. There is not any exploit available. A patch should be applied to remediate this issue.

Detailsinfo

A vulnerability was found in systemd 250/251. It has been declared as problematic. This vulnerability affects the function parse_elf_object of the file shared/elf-util.c. The manipulation with an unknown input leads to a deadlock vulnerability. The CWE definition for the vulnerability is CWE-833. The product contains multiple threads or executable segments that are waiting for each other to release a necessary lock, resulting in deadlock. As an impact it is known to affect availability. CVE summarizes:

systemd 250 and 251 allows local users to achieve a systemd-coredump deadlock by triggering a crash that has a long backtrace. This occurs in parse_elf_object in shared/elf-util.c. The exploitation methodology is to crash a binary calling the same function recursively, and put it in a deeply nested directory to make its backtrace large enough to cause the deadlock. This must be done 16 times when MaxConnections=16 is set for the systemd/units/systemd-coredump.socket file.

The weakness was released 11/24/2022. The advisory is available at github.com. This vulnerability was named CVE-2022-45873 since 11/23/2022. Technical details are known, but there is no available exploit.

Applying the patch 076b807be472630692c5348c60d0c2b7b28ad437 is able to eliminate this problem. The bugfix is ready for download at github.com.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.4
VulDB Meta Temp Score: 4.3

VulDB Base Score: 3.3
VulDB Temp Score: 3.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Deadlock
CWE: CWE-833 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: 076b807be472630692c5348c60d0c2b7b28ad437

Timelineinfo

11/23/2022 🔍
11/24/2022 +1 days 🔍
11/24/2022 +0 days 🔍
04/25/2025 +883 days 🔍

Sourcesinfo

Product: github.com

Advisory: 076b807be472630692c5348c60d0c2b7b28ad437
Status: Confirmed

CVE: CVE-2022-45873 (🔍)
GCVE (CVE): GCVE-0-2022-45873
GCVE (VulDB): GCVE-100-214306

Entryinfo

Created: 11/24/2022 08:51
Updated: 04/25/2025 21:58
Changes: 11/24/2022 08:51 (41), 12/22/2022 19:18 (1), 12/22/2022 19:26 (11), 04/25/2025 21:58 (16)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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