Unrated severityNVD Advisory· Published Apr 2, 2020· Updated Sep 17, 2024
Linux kernel bpf verifier vulnerability
CVE-2020-8835
Description
In the Linux kernel 5.5.0 and newer, the bpf verifier (kernel/bpf/verifier.c) did not properly restrict the register bounds for 32-bit operations, leading to out-of-bounds reads and writes in kernel memory. The vulnerability also affects the Linux 5.4 stable series, starting with v5.4.7, as the introducing commit was backported to that branch. This vulnerability was fixed in 5.6.1, 5.5.14, and 5.4.29. (issue is aka ZDI-CAN-10780)
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
2- Range: >=5.4.7, <5.4.29; >=5.5.0, <5.5.14; >=5.6.0, <5.6.1
Patches
Vulnerability mechanics
References
12- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/F7OONYGMSYBEFHLHZJK3GOI5Z553G4LD/mitrevendor-advisoryx_refsource_FEDORA
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TF4PQZBEPNXDSK5DOBMW54OCLP25FTCD/mitrevendor-advisoryx_refsource_FEDORA
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YXBWSHZ6DJIZVXKXGZPK6QPFCY7VKZEG/mitrevendor-advisoryx_refsource_FEDORA
- usn.ubuntu.com/4313-1/mitrevendor-advisoryx_refsource_UBUNTU
- www.openwall.com/lists/oss-security/2021/07/20/1mitremailing-listx_refsource_MLIST
- git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next.git/commit/mitrex_refsource_MISC
- git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/mitrex_refsource_MISC
- lore.kernel.org/bpf/20200330160324.15259-1-daniel%40iogearbox.net/T/mitrex_refsource_MISC
- security.netapp.com/advisory/ntap-20200430-0004/mitrex_refsource_CONFIRM
- usn.ubuntu.com/usn/usn-4313-1mitrex_refsource_MISC
- www.openwall.com/lists/oss-security/2020/03/30/3mitrex_refsource_MISC
- www.thezdi.com/blog/2020/3/19/pwn2own-2020-day-one-resultsmitrex_refsource_MISC
News mentions
0No linked articles in our index yet.