CVE-2021-47291
published 2024-05-21CVE-2021-47291: 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…
PriorityP428high7.1CVSS 3.1
AVLACLPRLUINSUCHINAH
EPSS
0.25%
16.1th percentile
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.
Affected
15 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 5.14.6-1 (bookworm) | linux 5.14.6-1 (bookworm) |
| linux | linux | — | — |
| linux | linux | >= f88d8ea67fbdbac7a64bfa6ed9a2ba27bb822f74 < 830251361425c5be044db4d826aaf304ea3d14c6 | 830251361425c5be044db4d826aaf304ea3d14c6 |
| linux | linux | >= f88d8ea67fbdbac7a64bfa6ed9a2ba27bb822f74 < ce8fafb68051fba52546f8bbe8621f7641683680 | ce8fafb68051fba52546f8bbe8621f7641683680 |
| linux | linux | >= f88d8ea67fbdbac7a64bfa6ed9a2ba27bb822f74 < 115784bcccf135c3a3548098153413d76f16aae0 | 115784bcccf135c3a3548098153413d76f16aae0 |
| linux | linux | >= f88d8ea67fbdbac7a64bfa6ed9a2ba27bb822f74 < 8fb4792f091e608a0a1d353dfdf07ef55a719db5 | 8fb4792f091e608a0a1d353dfdf07ef55a719db5 |
| linux | linux_kernel | — | — |
| linux | linux_kernel | — | — |
| linux | linux_kernel | >= 0 < 5.10.70-1 | 5.10.70-1 |
| linux | linux_kernel | >= 0 < 5.14.6-1 | 5.14.6-1 |
| linux | linux_kernel | >= 0 < 5.14.6-1 | 5.14.6-1 |
| linux | linux_kernel | >= 0 < 5.14.6-1 | 5.14.6-1 |
| linux | linux_kernel | >= 5.11 < 5.13.6 | 5.13.6 |
| linux | linux_kernel | >= 5.3 < 5.4.136 | 5.4.136 |
| linux | linux_kernel | >= 5.5 < 5.10.54 | 5.10.54 |
CVSS provenance
nvdv3.17.1HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
osv7.1HIGH
vendor_debian7.1HIGH
vendor_redhat7.1HIGH
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GHSA
GHSA-29rx-6chj-44xc: In the Linux kernel, the following vulnerability has been resolved:
ipv6: fix another slab-out-of-bounds in fib6_nh_flush_exceptions
While running t
ghsa_unreviewed·2024-05-21
CVE-2021-47291 [HIGH] CWE-125 GHSA-29rx-6chj-44xc: In the Linux kernel, the following vulnerability has been resolved:
ipv6: fix another slab-out-of-bounds in fib6_nh_flush_exceptions
While running t
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.
OSV
CVE-2021-47291: 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
osv·2024-05-21·CVSS 7.1
CVE-2021-47291 [HIGH] CVE-2021-47291: 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
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.
Red Hat
kernel: ipv6: fix another slab-out-of-bounds in fib6_nh_flush_exceptions
vendor_redhat·2024-05-21·CVSS 7.1
CVE-2021-47291 [HIGH] CWE-125 kernel: ipv6: fix another slab-out-of-bounds in fib6_nh_flush_exceptions
kernel: ipv6: fix another slab-out-of-bounds in fib6_nh_flush_exceptions
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.
Package: kernel (Red Hat Enterprise Linux 6) - Out of support scope
Package: kernel (Red Hat Enterprise Linux 7) - Out of support scope
Package: ker
Debian
CVE-2021-47291: linux - In the Linux kernel, the following vulnerability has been resolved: ipv6: fix a...
vendor_debian·2021·CVSS 7.1
CVE-2021-47291 [HIGH] CVE-2021-47291: linux - In the Linux kernel, the following vulnerability has been resolved: ipv6: fix a...
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.
Scope: local
bookworm: resolved (fixed in 5.14.6-1)
bullseye: resolved (fixed in 5.10.70-1)
forky: resolved (fixed in 5.14.6-1)
sid: resolved (fixed in 5.14.6-1)
trixie: resolved (fixed in 5.14.6-1)
No detection rules found.
No public exploits indexed.
https://git.kernel.org/stable/c/115784bcccf135c3a3548098153413d76f16aae0https://git.kernel.org/stable/c/830251361425c5be044db4d826aaf304ea3d14c6https://git.kernel.org/stable/c/8fb4792f091e608a0a1d353dfdf07ef55a719db5https://git.kernel.org/stable/c/ce8fafb68051fba52546f8bbe8621f7641683680https://git.kernel.org/stable/c/115784bcccf135c3a3548098153413d76f16aae0https://git.kernel.org/stable/c/830251361425c5be044db4d826aaf304ea3d14c6https://git.kernel.org/stable/c/8fb4792f091e608a0a1d353dfdf07ef55a719db5https://git.kernel.org/stable/c/ce8fafb68051fba52546f8bbe8621f7641683680
2024-05-21
Published