| 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-2023-52530: wifi: mac80211: fix potential key use-after-free |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| wifi: mac80211: fix potential key use-after-free |
| |
| When ieee80211_key_link() is called by ieee80211_gtk_rekey_add() |
| but returns 0 due to KRACK protection (identical key reinstall), |
| ieee80211_gtk_rekey_add() will still return a pointer into the |
| key, in a potential use-after-free. This normally doesn't happen |
| since it's only called by iwlwifi in case of WoWLAN rekey offload |
| which has its own KRACK protection, but still better to fix, do |
| that by returning an error code and converting that to success on |
| the cfg80211 boundary only, leaving the error for bad callers of |
| ieee80211_gtk_rekey_add(). |
| |
| The Linux kernel CVE team has assigned CVE-2023-52530 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 4.14 with commit fdf7cb4185b60c68e1a75e61691c4afdc15dea0e and fixed in 5.4.285 with commit 2408f491ff998d674707725eadc47d8930aced09 |
| Issue introduced in 4.14 with commit fdf7cb4185b60c68e1a75e61691c4afdc15dea0e and fixed in 5.10.228 with commit e8e599a635066c50ac214c3e10858f1d37e03022 |
| Issue introduced in 4.14 with commit fdf7cb4185b60c68e1a75e61691c4afdc15dea0e and fixed in 5.15.169 with commit e8a834eb09bb95c2bf9c76f1a28ecef7d8c439d0 |
| Issue introduced in 4.14 with commit fdf7cb4185b60c68e1a75e61691c4afdc15dea0e and fixed in 6.1.57 with commit 2f4e16e39e4f5e78248dd9e51276a83203950b36 |
| Issue introduced in 4.14 with commit fdf7cb4185b60c68e1a75e61691c4afdc15dea0e and fixed in 6.5.7 with commit 65c72a7201704574dace708cbc96a8f367b1491d |
| Issue introduced in 4.14 with commit fdf7cb4185b60c68e1a75e61691c4afdc15dea0e and fixed in 6.6 with commit 31db78a4923ef5e2008f2eed321811ca79e7f71b |
| Issue introduced in 3.2.95 with commit ef810e7c3d2a8fb3bbd23726599c487c30ea747e |
| Issue introduced in 3.16.50 with commit a0a8a11d1630cd648dc1ce86da620b4e240e0315 |
| Issue introduced in 3.18.82 with commit 6891c6fd2a500d1f39d1426765f610bdc2c2a39d |
| Issue introduced in 4.1.47 with commit 003aa22c9619b49efe950aca3aebd1235a04940d |
| Issue introduced in 4.4.99 with commit 6440f0ee8a1779f53526bccb9de00914daeb9094 |
| Issue introduced in 4.9.63 with commit 2586fa0007dc6b7745da14250be7e3aae706b128 |
| Issue introduced in 4.13.14 with commit a9ab1b2e30e898440a22d7b1d7a5b0b7c6a8791f |
| |
| 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-2023-52530 |
| 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/mac80211/cfg.c |
| net/mac80211/key.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/2408f491ff998d674707725eadc47d8930aced09 |
| https://git.kernel.org/stable/c/e8e599a635066c50ac214c3e10858f1d37e03022 |
| https://git.kernel.org/stable/c/e8a834eb09bb95c2bf9c76f1a28ecef7d8c439d0 |
| https://git.kernel.org/stable/c/2f4e16e39e4f5e78248dd9e51276a83203950b36 |
| https://git.kernel.org/stable/c/65c72a7201704574dace708cbc96a8f367b1491d |
| https://git.kernel.org/stable/c/31db78a4923ef5e2008f2eed321811ca79e7f71b |
