In the Linux kernel, the following vulnerability has been resolved: ipv6:
fix another slab-out-of-bounds in fib6_nh_flush_exceptions While running
the self-tests on a KASAN enabled kernel, I observed a slab-out-of-bounds
splat very similar to the one reported in commit 821bbf79fe46 (“ipv6: Fix
KASAN: slab-out-of-bounds Read in fib6_nh_flush_exceptions”). We
additionally need to take care of fib6_metrics initialization failure when
the caller provides an nh. The fix is similar, explicitly free the route
instead of calling fib6_info_release on a half-initialized object.
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
ubuntu | 20.04 | noarch | linux | < any | UNKNOWN |
ubuntu | 20.04 | noarch | linux-aws | < any | UNKNOWN |
ubuntu | 18.04 | noarch | linux-aws-5.4 | < any | UNKNOWN |
ubuntu | 20.04 | noarch | linux-azure | < any | UNKNOWN |
ubuntu | 18.04 | noarch | linux-azure-5.4 | < any | UNKNOWN |
ubuntu | 20.04 | noarch | linux-bluefield | < any | UNKNOWN |
ubuntu | 20.04 | noarch | linux-gcp | < any | UNKNOWN |
ubuntu | 18.04 | noarch | linux-gcp-5.4 | < any | UNKNOWN |
ubuntu | 20.04 | noarch | linux-gkeop | < any | UNKNOWN |
ubuntu | 18.04 | noarch | linux-hwe-5.4 | < any | UNKNOWN |
git.kernel.org/linus/8fb4792f091e608a0a1d353dfdf07ef55a719db5 (5.14-rc3)
git.kernel.org/stable/c/115784bcccf135c3a3548098153413d76f16aae0
git.kernel.org/stable/c/830251361425c5be044db4d826aaf304ea3d14c6
git.kernel.org/stable/c/8fb4792f091e608a0a1d353dfdf07ef55a719db5
git.kernel.org/stable/c/ce8fafb68051fba52546f8bbe8621f7641683680
launchpad.net/bugs/cve/CVE-2021-47291
nvd.nist.gov/vuln/detail/CVE-2021-47291
security-tracker.debian.org/tracker/CVE-2021-47291
www.cve.org/CVERecord?id=CVE-2021-47291