CVE-2019-12454
It uses kstrndup instead of kmemdup_nul, which allows attackers to have an unspecified impact via unknown vectors.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.44%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
An issue was discovered in wcd9335_codec_enable_dec in sound/soc/codecs/wcd9335.c in the Linux kernel through 5.1.5. It uses kstrndup instead of kmemdup_nul, which allows attackers to have an unspecified impact via unknown vectors. NOTE: The vendor disputes this issues as not being a vulnerability because switching to kmemdup_nul() would only fix a security issue if the source string wasn't NUL-terminated, which is not the case
- CVSS 3.0
- 7.8 HIGHCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.44% probability · 37th percentile
- CISA KEV
- Not listed
- Affected
- linux/linux kernel
- Source
- cve@mitre.org
References
- https://bugzilla.suse.com/show_bug.cgi?id=1136963#c1
- https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git/commit/?h=for-5.3&id=a54988113985ca22e414e132054f234fc8a92604Mailing List, Patch, Vendor Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/J36BIJTKEPUOZKJNHQBUZA47RQONUKOI/
- https://lkml.org/lkml/2019/5/29/705Mailing List, Patch, Third Party Advisory
- https://support.f5.com/csp/article/K13523672
- https://support.f5.com/csp/article/K13523672?utm_source=f5support&%3Butm_medium=RSS
- https://bugzilla.suse.com/show_bug.cgi?id=1136963#c1
- https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git/commit/?h=for-5.3&id=a54988113985ca22e414e132054f234fc8a92604Mailing List, Patch, Vendor Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/J36BIJTKEPUOZKJNHQBUZA47RQONUKOI/
- https://lkml.org/lkml/2019/5/29/705Mailing List, Patch, Third Party Advisory
- https://support.f5.com/csp/article/K13523672
- https://support.f5.com/csp/article/K13523672?utm_source=f5support&%3Butm_medium=RSS
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.