Fedoraproject: Security Vulnerabilities
x86 shadow plus log-dirty mode use-after-free In environments where host assisted address translation is necessary but Hardware Assisted Paging (HAP) is unavailable, Xen will run guests in so called shadow mode. Shadow mode maintains a pool of memory used for both shadow page tables as well as auxiliary data structures. To migrate or snapshot guests, Xen additionally runs them in so called log-dirty mode. The data structures needed by the log-dirty tracking are part of aformentioned auxiliary data. In order to keep error handling efforts within reasonable bounds, for operations which may require memory allocations shadow mode logic ensures up front that enough memory is available for the worst case requirements. Unfortunately, while page table memory is properly accounted for on the code path requiring the potential establishing of new shadows, demands by the log-dirty infrastructure were not taken into consideration. As a result, just established shadow page tables could be freed again immediately, while other code is still accessing them on the assumption that they would remain allocated.
CVSS Score
7.8
EPSS Score
0.0
Published
2023-03-21
NULL Pointer Dereference in GitHub repository vim/vim prior to 9.0.1392.
CVSS Score
6.6
EPSS Score
0.0
Published
2023-03-07
A flaw was found in the c-ares package. The ares_set_sortlist is missing checks about the validity of the input string, which allows a possible arbitrary length stack overflow. This issue may cause a denial of service or a limited impact on confidentiality and integrity.
CVSS Score
8.6
EPSS Score
0.002
Published
2023-03-06
A flaw was found in samba. A race condition in the password lockout code may lead to the risk of brute force attacks being successful if special conditions are met.
CVSS Score
5.9
EPSS Score
0.002
Published
2023-03-06
In PostgreSQL, a modified, unauthenticated server can send an unterminated string during the establishment of Kerberos transport encryption. In certain conditions a server can cause a libpq client to over-read and report an error message containing uninitialized bytes.
CVSS Score
3.7
EPSS Score
0.002
Published
2023-03-03
LibTIFF 4.4.0 has an out-of-bounds read in tiffcp in tools/tiffcp.c:948, allowing attackers to cause a denial-of-service via a crafted tiff file. For users that compile libtiff from sources, the fix is available with commit e8131125.
CVSS Score
6.8
EPSS Score
0.0
Published
2023-03-03
A use-after-free vulnerability in WebCore::RenderLayer::addChild in WebKitGTK before 2.36.8 allows attackers to execute code remotely.
CVSS Score
8.8
EPSS Score
0.001
Published
2023-03-02
Divide By Zero in GitHub repository vim/vim prior to 9.0.1367.
CVSS Score
7.3
EPSS Score
0.0
Published
2023-03-01
An attacker can craft a malformed TIFF image which will consume a significant amount of memory when passed to DecodeConfig. This could lead to a denial of service.
CVSS Score
5.5
EPSS Score
0.001
Published
2023-02-28
Sudo before 1.9.13p2 has a double free in the per-command chroot feature.
CVSS Score
7.2
EPSS Score
0.002
Published
2023-02-28