VulnerabilityModified
CVE-2022-2526
A use-after-free vulnerability was found in systemd.
CRITICAL 9.8EPSS 1.32%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.32%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
A use-after-free vulnerability was found in systemd. This issue occurs due to the on_stream_io() function and dns_stream_complete() function in 'resolved-dns-stream.c' not incrementing the reference counting for the DnsStream object. Therefore, other functions and callbacks called can dereference the DNSStream object, causing the use-after-free when the reference is still used later.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 1.32% probability · 69th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-416
- Affected
- systemd project/systemd · netapp/active iq unified manager · netapp/h300s firmware · netapp/h500s firmware · netapp/h700s firmware · netapp/h410s firmware
- Source
- secalert@redhat.com
References
- https://github.com/systemd/systemd/commit/d973d94dec349fb676fdd844f6fe2ada3538f27cPatch, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20221111-0005/Third Party Advisory
- https://github.com/systemd/systemd/commit/d973d94dec349fb676fdd844f6fe2ada3538f27cPatch, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20221111-0005/Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.