| From bippy-5f407fcff5a0 Mon Sep 17 00:00:00 2001 |
| From: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
| To: <linux-cve-announce@vger.kernel.org> |
| Reply-to: <cve@kernel.org>, <linux-kernel@vger.kernel.org> |
| Subject: CVE-2022-48641: netfilter: ebtables: fix memory leak when blob is malformed |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| netfilter: ebtables: fix memory leak when blob is malformed |
| |
| The bug fix was incomplete, it "replaced" crash with a memory leak. |
| The old code had an assignment to "ret" embedded into the conditional, |
| restore this. |
| |
| The Linux kernel CVE team has assigned CVE-2022-48641 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 4.14.292 with commit afd01382594d643e1adeb16826423b418cdf8b8b and fixed in 4.14.295 with commit 754e8b74281dd54a324698803483f47cf3355ae1 |
| Issue introduced in 4.19.257 with commit 358765beb836f5fc2ed26b5df4140d5d3548ac11 and fixed in 4.19.260 with commit 1e98318af2f163eadaff815abcef38d27ca92c1e |
| Issue introduced in 5.4.212 with commit 160c4eb47db03b96c0c425358e7595ebefe8094d and fixed in 5.4.215 with commit 11ebf32fde46572b0aaf3c2bdd97d923ef5a03ab |
| Issue introduced in 5.10.140 with commit 624c30521233e110cf50ba01980a591e045036ae and fixed in 5.10.146 with commit ebd97dbe3c55d68346b9c5fb00634a7f5b10bbee |
| Issue introduced in 5.15.64 with commit 1b2c5428f773d60c116c7b1e390432e0cfb63cd6 and fixed in 5.15.71 with commit d5917b7af7cae0e2804f9d127a03268035098b7f |
| Issue introduced in 5.19.6 with commit e53cfa017bf4575d0b948a8f45313ef66d897136 and fixed in 5.19.12 with commit 38cf372b17f0a5f35c1b716a100532d539f0eb33 |
| |
| Please see https://www.kernel.org for a full list of currently supported |
| kernel versions by the kernel community. |
| |
| Unaffected versions might change over time as fixes are backported to |
| older supported kernel versions. The official CVE entry at |
| https://cve.org/CVERecord/?id=CVE-2022-48641 |
| will be updated if fixes are backported, please check that for the most |
| up to date information about this issue. |
| |
| |
| Affected files |
| ============== |
| |
| The file(s) affected by this issue are: |
| net/bridge/netfilter/ebtables.c |
| |
| |
| Mitigation |
| ========== |
| |
| The Linux kernel CVE team recommends that you update to the latest |
| stable kernel version for this, and many other bugfixes. Individual |
| changes are never tested alone, but rather are part of a larger kernel |
| release. Cherry-picking individual commits is not recommended or |
| supported by the Linux kernel community at all. If however, updating to |
| the latest release is impossible, the individual changes to resolve this |
| issue can be found at these commits: |
| https://git.kernel.org/stable/c/754e8b74281dd54a324698803483f47cf3355ae1 |
| https://git.kernel.org/stable/c/1e98318af2f163eadaff815abcef38d27ca92c1e |
| https://git.kernel.org/stable/c/11ebf32fde46572b0aaf3c2bdd97d923ef5a03ab |
| https://git.kernel.org/stable/c/ebd97dbe3c55d68346b9c5fb00634a7f5b10bbee |
| https://git.kernel.org/stable/c/d5917b7af7cae0e2804f9d127a03268035098b7f |
| https://git.kernel.org/stable/c/38cf372b17f0a5f35c1b716a100532d539f0eb33 |
| https://git.kernel.org/stable/c/62ce44c4fff947eebdf10bb582267e686e6835c9 |
