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6.5
CVE-2015-5327: Linux kernel may leak data when handling certificates
CVE-2015-5327 · published 9 years ago
Summary
The Linux kernel version 4.3-rc1 and newer can read memory it shouldn't while decoding certificate dates. This could allow an attacker to see sensitive information from the system. Update the kernel to a patched version as soon as possible.
What to do
The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.
Affected software
| Vendor | Product | Affected versions |
|---|---|---|
| linux | linux_kernel |
4.3 cpe:2.3:o:linux:linux_kernel:4.3:*:*:*:*:*:*:* |
Original advisory text
Out-of-bounds memory read in the x509_decode_time function in x509_cert_parser.c in Linux kernels 4.3-rc1 and after.
Out-of-bounds memory read in the x509_decode_time function in x509_cert_parser.c in Linux kernels 4.3-rc1 and after.
References
- http://www.openwall.com/lists/oss-security/2015/11/27/1 Mailing List Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1278978 Issue Tracking Third Party Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=cc... Patch
Internet-facing
60 days
Internal
At next upgrade
- Not known to be exploited
- Needs hands-on effort to exploit (estimated)
- Gives an attacker partial control (estimated)
Type
CWE-125Out-of-bounds Read
Timeline
Published25 Sep 2017
Updated3 Nov 2026
First seen29 Sep 2026
Sources
CVE-2015-5327 · NVD
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