CVSS: 7.0EPSS: 0%CPEs: 2EXPL: 0CVE-2022-23037
https://notcve.org/view.php?id=CVE-2022-23037
Linux PV device frontends vulnerable to attacks by backends T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Several Linux PV device frontends are using the grant table interfaces for removing access rights of the backends in ways being subject to race conditions, resulting in potential data leaks, data corruption by malicious backends, and denial of service triggered by malicious backends: blkfront, netfront, scsifront and the gntalloc driver are testing whether a grant reference is still in use. If this is not the case, they assume that a following removal of the granted access will always succeed, which is not true in case the backend has mapped the granted page between those two operations. As a result the backend can keep access to the memory page of the guest no matter how the page will be used after the frontend I/O has finished. The xenbus driver has a similar problem, as it doesn't check the success of removing the granted access of a shared ring buffer. blkfront: CVE-2022-23036 netfront: CVE-2022-23037 scsifront: CVE-2022-23038 gntalloc: CVE-2022-23039 xenbus: CVE-2022-23040 blkfront, netfront, scsifront, usbfront, dmabuf, xenbus, 9p, kbdfront, and pvcalls are using a functionality to delay freeing a grant reference until it is no longer in use, but the freeing of the related data page is not synchronized with dropping the granted access. • https://lists.debian.org/debian-lts-announce/2022/07/msg00000.html https://xenbits.xenproject.org/xsa/advisory-396.txt • CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') •
CVSS: 7.0EPSS: 0%CPEs: 2EXPL: 0CVE-2022-23036
https://notcve.org/view.php?id=CVE-2022-23036
Linux PV device frontends vulnerable to attacks by backends T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Several Linux PV device frontends are using the grant table interfaces for removing access rights of the backends in ways being subject to race conditions, resulting in potential data leaks, data corruption by malicious backends, and denial of service triggered by malicious backends: blkfront, netfront, scsifront and the gntalloc driver are testing whether a grant reference is still in use. If this is not the case, they assume that a following removal of the granted access will always succeed, which is not true in case the backend has mapped the granted page between those two operations. As a result the backend can keep access to the memory page of the guest no matter how the page will be used after the frontend I/O has finished. The xenbus driver has a similar problem, as it doesn't check the success of removing the granted access of a shared ring buffer. blkfront: CVE-2022-23036 netfront: CVE-2022-23037 scsifront: CVE-2022-23038 gntalloc: CVE-2022-23039 xenbus: CVE-2022-23040 blkfront, netfront, scsifront, usbfront, dmabuf, xenbus, 9p, kbdfront, and pvcalls are using a functionality to delay freeing a grant reference until it is no longer in use, but the freeing of the related data page is not synchronized with dropping the granted access. • https://lists.debian.org/debian-lts-announce/2022/07/msg00000.html https://xenbits.xenproject.org/xsa/advisory-396.txt • CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') •
CVSS: 6.5EPSS: 1%CPEs: 5EXPL: 1CVE-2021-32436
https://notcve.org/view.php?id=CVE-2021-32436
An out-of-bounds read in the function write_title() in subs.c of abcm2ps v8.14.11 allows remote attackers to cause a Denial of Service (DoS) via unspecified vectors. Una lectura fuera de límites en la función write_title() en el archivo subs.c de abcm2ps versión v8.14.11, permite a atacantes remotos causar una denegación de servicio (DoS) por medio de vectores no especificados • https://github.com/leesavide/abcm2ps/commit/2f56e1179cab6affeb8afa9d6c324008fe40d8e3 https://github.com/leesavide/abcm2ps/issues/85 https://lists.debian.org/debian-lts-announce/2022/04/msg00015.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6333SXWMES3K22DBAOAW34G6EU6WIJEY https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EVGJH4HMXI3TWMHQJQCG3M7KSXJWJM7R https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YTF4F • CWE-125: Out-of-bounds Read •
CVSS: 9.1EPSS: 0%CPEs: 2EXPL: 1CVE-2021-33293
https://notcve.org/view.php?id=CVE-2021-33293
Panorama Tools libpano13 v2.9.20 was discovered to contain an out-of-bounds read in the function panoParserFindOLine() in parser.c. Se ha detectado que Panorama Tools libpano13 versión v2.9.20, contiene una lectura fuera de límites en la función panoParserFindOLine() en el archivo parser.c • https://groups.google.com/u/1/g/hugin-ptx/c/gLtz2vweD74 https://lists.debian.org/debian-lts-announce/2022/03/msg00029.html https://sourceforge.net/p/panotools/libpano13/ci/62aa7eed8fae5d8f247a2508a757f31000de386f • CWE-125: Out-of-bounds Read •
CVSS: 5.5EPSS: 0%CPEs: 5EXPL: 1CVE-2021-32435
https://notcve.org/view.php?id=CVE-2021-32435
Stack-based buffer overflow in the function get_key in parse.c of abcm2ps v8.14.11 allows remote attackers to cause a Denial of Service (DoS) via unspecified vectors. Un desbordamiento del búfer en la región Stack de la memoria en la función get_key en el archivo parse.c de abcm2ps versión v8.14.11, permite a atacantes remotos causar una denegación de servicio (DoS) por medio de vectores no especificados • https://github.com/leesavide/abcm2ps/commit/3169ace6d63f6f517a64e8df0298f44a490c4a15 https://github.com/leesavide/abcm2ps/issues/84 https://lists.debian.org/debian-lts-announce/2022/04/msg00015.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6333SXWMES3K22DBAOAW34G6EU6WIJEY https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EVGJH4HMXI3TWMHQJQCG3M7KSXJWJM7R https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YTF4F • CWE-787: Out-of-bounds Write •