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When reading XPM images from a file with libXpm 3.5.14 or older, if a image has a width of 0 and a very large height, the ParsePixels() function will loop over the entire height calling getc() and ungetc() repeatedly, or in some circumstances, may loop seemingly forever, which may cause a denial of service to the calling program when given a small crafted XPM file to parse.
Created libXpm tracking bugs for this issue: Affects: fedora-all [bug 2161710]
Reference: https://lists.x.org/archives/xorg-announce/2023-January/003312.html Upstream patch: https://gitlab.freedesktop.org/xorg/lib/libxpm/-/commit/f80fa6ae47ad4a5beacb28 https://gitlab.freedesktop.org/xorg/lib/libxpm/-/commit/c5ab17bcc34914c0b0707d
This issue has been addressed in the following products: Red Hat Enterprise Linux 8.1 Update Services for SAP Solutions Via RHSA-2023:0384 https://access.redhat.com/errata/RHSA-2023:0384
This issue has been addressed in the following products: Red Hat Enterprise Linux 8.2 Advanced Update Support Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions Red Hat Enterprise Linux 8.2 Telecommunications Update Service Via RHSA-2023:0380 https://access.redhat.com/errata/RHSA-2023:0380
This issue has been addressed in the following products: Red Hat Enterprise Linux 9 Via RHSA-2023:0383 https://access.redhat.com/errata/RHSA-2023:0383
This issue has been addressed in the following products: Red Hat Enterprise Linux 8 Via RHSA-2023:0379 https://access.redhat.com/errata/RHSA-2023:0379
This issue has been addressed in the following products: Red Hat Enterprise Linux 8.6 Extended Update Support Via RHSA-2023:0378 https://access.redhat.com/errata/RHSA-2023:0378
This issue has been addressed in the following products: Red Hat Enterprise Linux 9.0 Extended Update Support Via RHSA-2023:0381 https://access.redhat.com/errata/RHSA-2023:0381
This issue has been addressed in the following products: Red Hat Enterprise Linux 8.4 Extended Update Support Via RHSA-2023:0382 https://access.redhat.com/errata/RHSA-2023:0382
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s): https://access.redhat.com/security/cve/cve-2022-44617