SB2012042002 - Heap-based buffer overflow in aalib (Alpine package)

Description

This security bulletin contains information about 1 security vulnerability.

1) Heap-based buffer overflow (CVE-ID: CVE-2010-2642)

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error in Heap-based buffer overflow in the AFM font parser in the dvi-backend component in Evince 2.32 and earlier, teTeX 3.0, t1lib 5.1.2, and possibly other products. A remote attacker can use a crafted font in conjunction with a DVI file that is processed by the thumbnailer. to trigger heap-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Remediation

Install update from vendor's website.

References

• https://git.alpinelinux.org/aports/commit/?id=3ce3c4fd596debefbad77328a9b62a39eccf753c
• https://git.alpinelinux.org/aports/commit/?id=b6af1e02efe594039707cd882517663d5370f375
• https://git.alpinelinux.org/aports/commit/?id=7bf92c2ffdab37a32b145be408f8f6281c426b47
• https://git.alpinelinux.org/aports/commit/?id=e4600af202ef9c999df7769e245960248d4d7e59