Salvatore Bonaccorso pushed to branch master at Debian Security Tracker / security-tracker
Commits: 19691629 by Salvatore Bonaccorso at 2018-04-08T21:03:00+02:00 Clarify status for CVE-2018-9251/libxml2 Add CVE-2017-18258 at the same time. The situation has been clarified. So CVE-2018-9251 is only an issue if upstream commit https://git.gnome.org/browse/libxml2/commit/?id=e2a9122b8dde53d320750451e9907a7dcb2ca8bb is applied (which was assigned CVE-2017-18258). - - - - - 1 changed file: - data/CVE/list Changes: ===================================== data/CVE/list ===================================== --- a/data/CVE/list +++ b/data/CVE/list @@ -1342,13 +1342,21 @@ CVE-2018-9252 (JasPer 2.0.14 allows denial of service via a reachable assertion NOTE: https://github.com/mdadams/jasper/issues/173 NOTE: Negligable impact CVE-2018-9251 (The xz_decomp function in xzlib.c in libxml2 2.9.8, if --with-lzma is ...) - - libxml2 <unfixed> (bug #895195) + - libxml2 <not-affected> (Fix for CVE-2017-18258 not applied, cf. bug #895195) NOTE: https://bugzilla.gnome.org/show_bug.cgi?id=794914 NOTE: Before upstream commit https://git.gnome.org/browse/libxml2/commit/?id=e2a9122b8dde53d320750451e9907a7dcb2ca8bb NOTE: the memlimit argument to lzma_auto_decoder was set to UINT64_MAX, possibly NOTE: allowing a malicious LZMA compressed files to consume large amounts of memory - NOTE: when decompressed. After upstream commit e2a9122b8dde53d320750451e9907a7dcb2ca8bb - NOTE: with xz_decomp is more prominently uncovered. + NOTE: when decompressed. Setting memlimit to UINT64_MAX the limiter is effectively + NOTE: disabled and "lzma_auto_decoder(&state->strm, UINT64_MAX, 0)" can never result + NOTE: in LZMA_MEMLIMIT_ERROR outcome because there is no way to exceed UINT64_MAX. + NOTE: Thus CVE-2018-9251 is only affecting libxml2 if e2a9122b8dde53d320750451e9907a7dcb2ca8bb +CVE-2017-18258 [Set memory limit for LZMA decompression] + - libxml2 <unfixed> + NOTE: https://bugzilla.gnome.org/show_bug.cgi?id=786696 + NOTE: Fixed by: https://git.gnome.org/browse/libxml2/commit/?id=e2a9122b8dde53d320750451e9907a7dcb2ca8bb + NOTE: When fixing this issue make sure to not open CVE-2018-9251 and apply + NOTE: the fix for CVE-2018-9251 / https://bugzilla.gnome.org/show_bug.cgi?id=794914 CVE-2018-9250 RESERVED CVE-2018-9249 (FiberHome VDSL2 Modem HG 150-UB devices allow authentication bypass by ...) View it on GitLab: https://salsa.debian.org/security-tracker-team/security-tracker/commit/196916297e9eb45b27cf9291d94e40229f9e55fe --- View it on GitLab: https://salsa.debian.org/security-tracker-team/security-tracker/commit/196916297e9eb45b27cf9291d94e40229f9e55fe You're receiving this email because of your account on salsa.debian.org.
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