Описание
Security update for the Linux Kernel (Live Patch 16 for SLE 15)
This update for the Linux Kernel 4.12.14-150_41 fixes several issues.
The following security issues were fixed:
- CVE-2017-1000405: Fixed a bug in the THP CoW support that could have been used by local attackers to corrupt memory of other processes and cause them to crash (bsc#1178264, bsc#1069496, bsc#1070307).
- CVE-2020-0430: Fixed an OOB read in skb_headlen of /include/linux/skbuff.h (bsc#1176723, bsc#1178003).
- CVE-2020-12351: Fixed a type confusion while processing AMP packets aka 'BleedingTooth' aka 'BadKarma' (bsc#1177724, bsc#1177729, bsc#1178397).
- CVE-2020-25645: Fixed an an issue in IPsec that caused traffic between two Geneve endpoints to be unencrypted (bnc#1177513).
Список пакетов
SUSE Linux Enterprise Live Patching 12 SP4
SUSE Linux Enterprise Live Patching 15
Ссылки
- Link for SUSE-SU-2020:3449-1
- E-Mail link for SUSE-SU-2020:3449-1
- SUSE Security Ratings
- SUSE Bug 1177513
- SUSE Bug 1177729
- SUSE Bug 1178003
- SUSE Bug 1178264
- SUSE CVE CVE-2017-1000405 page
- SUSE CVE CVE-2020-0430 page
- SUSE CVE CVE-2020-12351 page
- SUSE CVE CVE-2020-25645 page
Описание
The Linux Kernel versions 2.6.38 through 4.14 have a problematic use of pmd_mkdirty() in the touch_pmd() function inside the THP implementation. touch_pmd() can be reached by get_user_pages(). In such case, the pmd will become dirty. This scenario breaks the new can_follow_write_pmd()'s logic - pmd can become dirty without going through a COW cycle. This bug is not as severe as the original "Dirty cow" because an ext4 file (or any other regular file) cannot be mapped using THP. Nevertheless, it does allow us to overwrite read-only huge pages. For example, the zero huge page and sealed shmem files can be overwritten (since their mapping can be populated using THP). Note that after the first write page-fault to the zero page, it will be replaced with a new fresh (and zeroed) thp.
Затронутые продукты
Ссылки
- CVE-2017-1000405
- SUSE Bug 1069496
- SUSE Bug 1070307
Описание
In skb_headlen of /include/linux/skbuff.h, there is a possible out of bounds read due to memory corruption. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-153881554
Затронутые продукты
Ссылки
- CVE-2020-0430
- SUSE Bug 1176723
- SUSE Bug 1178003
Описание
Improper input validation in BlueZ may allow an unauthenticated user to potentially enable escalation of privilege via adjacent access.
Затронутые продукты
Ссылки
- CVE-2020-12351
- SUSE Bug 1177724
- SUSE Bug 1177729
- SUSE Bug 1178397
Описание
A flaw was found in the Linux kernel in versions before 5.9-rc7. Traffic between two Geneve endpoints may be unencrypted when IPsec is configured to encrypt traffic for the specific UDP port used by the GENEVE tunnel allowing anyone between the two endpoints to read the traffic unencrypted. The main threat from this vulnerability is to data confidentiality.
Затронутые продукты
Ссылки
- CVE-2020-25645
- SUSE Bug 1177511
- SUSE Bug 1177513