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authorTomas Mraz <tomas@openssl.org>2024-01-04 10:32:32 +0100
committerTomas Mraz <tomas@openssl.org>2024-01-09 15:46:24 +0100
commit5def27cc65224447d6f2c7c164201634406a4dc8 (patch)
treea54707569eeb2f330f557620c09948780b10a380 /CHANGES.md
parent5b139f95c9a47a55a0c54100f3837b1eee942b04 (diff)
Add CHANGES.md and NEWS.md entries for CVE-2023-6129
Reviewed-by: Matt Caswell <matt@openssl.org> Reviewed-by: Richard Levitte <levitte@openssl.org> (Merged from https://github.com/openssl/openssl/pull/23200) (cherry picked from commit 858c7bc210a406cc7f891ac2aed78692d2e02937)
Diffstat (limited to 'CHANGES.md')
-rw-r--r--CHANGES.md21
1 files changed, 21 insertions, 0 deletions
diff --git a/CHANGES.md b/CHANGES.md
index fa8b0b65ed..e1ac7adc08 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -27,6 +27,26 @@ OpenSSL 3.2
### Changes between 3.2.0 and 3.2.1 [xx XXX xxxx]
+ * The POLY1305 MAC (message authentication code) implementation in OpenSSL
+ for PowerPC CPUs saves the contents of vector registers in different
+ order than they are restored. Thus the contents of some of these vector
+ registers is corrupted when returning to the caller. The vulnerable code is
+ used only on newer PowerPC processors supporting the PowerISA 2.07
+ instructions.
+
+ The consequences of this kind of internal application state corruption can
+ be various - from no consequences, if the calling application does not
+ depend on the contents of non-volatile XMM registers at all, to the worst
+ consequences, where the attacker could get complete control of the
+ application process. However unless the compiler uses the vector registers
+ for storing pointers, the most likely consequence, if any, would be an
+ incorrect result of some application dependent calculations or a crash
+ leading to a denial of service.
+
+ ([CVE-2023-6129])
+
+ *Rohan McLure*
+
* Disable building QUIC server utility when OpenSSL is configured with
`no-apps`.
@@ -20326,6 +20346,7 @@ ndif
<!-- Links -->
+[CVE-2023-6129]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-6129
[CVE-2023-5678]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-5678
[CVE-2023-5363]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-5363
[CVE-2023-4807]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-4807