Description
The asn1_get_sequence_of function in library/asn1parse.c in PolarSSL 1.0 through 1.2.12 and 1.3.x through 1.3.9 does not properly initialize a pointer in the asn1_sequence linked list, which allows remote attackers to cause a denial of service (crash) or possibly execute arbitrary code via a crafted ASN.1 sequence in a certificate.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 7 | polarssl | 1.2.9-1~deb7u5 | DSA-3136-1 |
| Debian 6.0 | polarssl | 1.2.9-1~deb6u4 | DLA-144-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | mbedtls | 2.4.0-1.2 | openSUSE-SU-2024:10088-1 |
| openSUSE Tumbleweed | mbedtls-2 | 2.28.3-1.1 | openSUSE-SU-2024:12903-1 |
| openSUSE Tumbleweed | mbedtls-3 | 3.6.6-1.1 | openSUSE-SU-2026:11119-1 |
Advisories 5
- openSUSE-SU-2026:11119-1 libeverest-3.6.6-1.1 on GA media SUSE / openSUSE Security Updates · Jun 26, 2026
- DSA-3136-1 polarssl - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-144-1 polarssl - security update Debian Security (DSA / DLA) · Mar 9, 2026
- openSUSE-SU-2024:10088-1 libmbedcrypto0-2.4.0-1.2 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:12903-1 libmbedcrypto7-2.28.3-1.1 on GA media SUSE / openSUSE Security Updates · May 7, 2025
References
- FEDORA-2015-0991 vendor-advisory
- 62270 third-party-advisory
- FEDORA-2015-1045 vendor-advisory
- openSUSE-SU-2015:0186 vendor-advisory
- GLSA-201801-15 vendor-advisory
- 62610 third-party-advisory
- https://polarssl.org/tech-updates/security-advisories/polarssl-security-advisory-2014-04
- DSA-3136 vendor-advisory