CVE-2022-0500A-228560539PUB-A-228560539
A flaw was found in unrestricted eBPF usage by the BPF_BTF_LOAD, leading to a possible out-of-bounds memory write in the Linux kernel’s BPF
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in :2022-12-05
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
CISA's decision points: whether it is exploited, whether attacks can be automated, and how much control an attacker gets. Assessed (SSVC 2.0.3).What do these mean? →
- Exploitation: none
- Automatable: no
- Technical impact: total
Summary
A flaw was found in unrestricted eBPF usage by the BPF_BTF_LOAD, leading to a possible out-of-bounds memory write in the Linux kernel’s BPF subsystem due to the way a user loads BTF. This flaw allows a local user to crash or escalate their privileges on the system.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: no · Technical impact: total
- Record last updated
Affected versions
- n/a kernel
Linux kernel 5.17-rc1
- :linux_kernel:Android
From :0 · fixed in :2022-12-05
References 9
bugzilla.redhat.com
git.kernel.org
- pub/scm/linux/kernel/git/torvalds/linux.git/commit?id=20b2aff4bc15bda809f994761d5719827d66c0b4
- pub/scm/linux/kernel/git/torvalds/linux.git/commit?id=216e3cd2f28dbbf1fe86848e0e29e6693b9f0a20
- pub/scm/linux/kernel/git/torvalds/linux.git/commit?id=34d3a78c681e8e7844b43d1a2f4671a04249c821
- pub/scm/linux/kernel/git/torvalds/linux.git/commit?id=3c4807322660d4290ac9062c034aed6b87243861
- pub/scm/linux/kernel/git/torvalds/linux.git/commit?id=48946bd6a5d695c50b34546864b79c1f910a33c1
- pub/scm/linux/kernel/git/torvalds/linux.git/commit?id=c25b2ae136039ffa820c26138ed4a5e5f3ab3841
- pub/scm/linux/kernel/git/torvalds/linux.git/commit?id=cf9f2f8d62eca810afbd1ee6cc0800202b000e57